Reloading 300 Blackout: Further Loki Testing. The Hornady 208-grain AMax and 9.4 grains of H110 was a tad too fast. The average velocity was 1,069 fps, but the load’s extreme spread of 96 fps put a few rounds above the sound barrier. The average group size measured 2.21 inches, with the smallest at 1.039 inch.Nov 4, 2013. #8. I'm running a Remington 700 AAC-SD bolt action rifle in 300 Blackout using Hornady 150gn FJMBTs over 15gn of H110 with a velocity of 1,855. I shot a 2.2" group at 300 meters with those supers on Saturday. Very good load in this platform.I've got a range of powders sitting on my bench, and none of them are in my recipe book for 300 Blackout loads, so I'm going to need to buy something new. I figured I could get some recommendations that might steer me in the right direction before going out and dropping $30-$35 on a pound of powder that I don't like how it meters, or performs.13 Feb 2024 ... Testing h110 and lil gun powders in 300 blackout https://www.vedderholsters.com https://www.targetsportsusa.com/t-ammoplus.aspx Infinity ...15 Mar 2020 ... Comments156 · 300 BLK Pea Shooter (Powder Coated .310 Round Balls) · 300 BLK - Powder Coated Bullets with Lil' Gun · 300 Blackout - Loading...Blackout curtain liners are a popular choice for homeowners who want to enhance their privacy, control the amount of light entering their rooms, and improve energy efficiency. More...The subsonic 300 Blackout loads are often compared to 45 ACP, 10 mm or 9mm subsonic rounds. This showcases the dual purpose of the round. The advantage of 300 Blackout is if the shooter wants an AR-pattern rifle or pistol that is easily suppressed, they can use a common magazine and typically only need to swap an upper receiver.300 Blackout vs 5.56 conversation is complicated. Despite using the same case and being shot out of AR-15, each excels in different facets. ... Since it’s a smaller round, requiring less material to construct its bullets and a smaller powder charge to launch it, it was also less expensive—particularly compared to its .30-caliber predecessorFeb 23, 2024 · The .300 AAC Blackout also burns powder faster than its .30 caliber siblings. You can also easily suppress a rifle that shoots this round to gain even more advantage. In terms of recoil, you’ll experience about 9 pounds to the shoulder. When it comes to penetration, this caliber performs well. Dec 17, 2022 · Based on feedback from shooting experts, the best barrel length for .300 Blackout suppressed is 8 to 10 inches. If your barrel is 8 to 10 inches, attaching a 6-inch suppressor will take the barrel’s length to 14 to 16-inches. At 16 inches, .300 Blackout barrel muzzle velocity is close to its peak, giving you a powerful weapon for making ... 300 Blackout cast load data. I am just getting started with the 300 Blackout. There is very little data available for this cartridge and I cant find any data for cast loads. I think there is several members here that shoot the 300 blackout and I was hoping some of y'all would share some cast load data. I will be starting with boolits ranging ...The Bottom Line on 300 Blackout Ammo. The 300 Blackout is a rifle cartridge that’s more powerful than the 5.56 when fired out of a barrel that’s less than 16 inches long. The chief advantage of 300 Blackout is its versatility. You won’t find a cartridge that “does it all” better than the 300 Blackout.With the popularity of the 300 AAC Blackout cartridge on a steady rise, more and more reloaders are trying to make the most out of this game-changing round. The 300 BLK became popular for the same reason most other equipment does: versatility. ... The powder also works well for 7.62x39mm and the .17 Hornet. Once we got our hands on …CFE Pistol was NOT made for the 300 Blackout. It's a faster burning Pistol powder. Hodgdon CFE BLK was made for the 300 Blackout. The "CFE" in the names only refers to "Copper Fouling Eraser"elements being in the powder. You're gonna put your eye out! Don't mess around if you don't know WTF you're doing.The 300 BLK shoots .308 caliber bullets. 3. Suppressor-Friendly: You can shoot heavier bullets subsonic. The subsonic capabilities of the 300 BLK make it ideal for use with a suppressed AR. 4. Great Barrel Life: With a .30-caliber bore and a modest powder charge, barrel life is outstanding. 5.Concord, NH. May 24, 2023. #1. Built a 16" 300blk bolt gun with a Wilson barrel. Figured I would start a thread here to share the load data journey. With the limited data on N110, I did a quick test to see where the limits of the charge would be using Hoosier 220gr lead powder coated bullets and Noslers 175 Custom Comps. I shot 6 loads of each.Check out the best powders for 300 Blackout ammo below. At a Glance: Our Top Picks for Powder For 300 Blackout. OUR TOP PICK: CFE BLK Smokeless Rifle Powder. RUNNER-UP: Alliant Powder - Power Pro 300-mp Powder. BEST BUDGET OPTION: Hodgdon H110 Powder.Aug 18, 2020 · Posted by Alice Jones Webb on Aug 18th 2020. .300 AAC Blackout is hands-down, one of the coolest alternative AR-15 cartridges on the market today. This wicked cartridge is more than capable of dropping whitetails at 100 yards and ringing steel targets farther than that. And when you use subsonic ammo, the loudest sound you’ll hear is the ... The short casing of 300 Blackout facilitates the powder to burn quickly and allows gas to build up much more effectively in a short barrel. This gives 300 BLK an edge over 5.56×45mm to achieve much …With supersonic rounds for maximum muzzle velocity to subsonic loads that quiet the roar by slowing the pace. Regardless of the position it plays, the .300 BLK’s …In this video I will show you how to reload 300 AAC Blackout Ammo. I will be going over the basics of how to reload this ammunition. This is a step by step...Aug 9, 2022. #1. I got a new AR Platform based rifle in 300 Blackout. I built it myself with Aero Precision and a Proof Research 16" Barrel with Superlative Arms Adjustable Gas Block.. I plan to shoot this suppressed and want to use heavier bullets and stay subsonic. I have Lapua brass because I use it for everything I reload in rifle.Jul 19, 2022 · The .300 BLK has easily been the most successful new caliber in the last 20 years. Besides the easy conversion between 5.56 and .300 BLK, the .300 BLK does a lot the 5.56 can’t. First off, it’s a very versatile load with projectiles weights ranging from 110 grains to 220 grains. (L to R) 5.56 NATO, .300 BLK, .30 Carbine. .300 Whisper / .300 AAC Blackout / .300 Blackout (Using 225 GR Hornady Bullets) reloading data with 45 loads. Using bullets from Hornady BTHP Match. Powders include Accurate, Hodgdon, Alliant, Winchester, Vihtavuori, IMRWhen it comes to powder coating, selecting the right company is crucial. While some individuals may attempt to DIY their powder coating projects, there are several advantages to ch...With that light a bullet, 748 is probably going to be way too slow a powder. I tend to use faster powders- like H110 with bullets lighter than 150 grains and a little slower like 1680 for heavier ones but 748 just seems way too slow for 300BLK. Loren. Quick Navigation Special Projects Top.Write a review. $47.99. SKU: 4781658. Designed specifically for .300 AAC Blackout cartridges, Hodgdon® CFE BLK Smokeless Reloading Powder pours easily for accurate measurements, and contains a proprietary Copper Fouling Eraser...AA#5 Sierra lists it for light weight supersonic loadings (135gr and lighter) for 300 whisper, However other powders give much higher velocity. AA#7 Sierra lists it for light weight supersonic loadings (135gr and lighter) for 300 whisper, However other powders give much higher velocity. AA2015 is listed in some super sonic loadings for 150gr ...Shooters World Blackout is optimized for heavy subs. SW SOCOM is good to run supers and subs. Both stay in stock far longer than the more well known alternatives …Jun 20, 2022 · Looking to build a 10" 300 BLK that will be run primarily suppressed. Trying to find a bullet / powder combination that would be best out of a 10" 300 BLK barrel. By best, what I'm looking for is - clean burning - actually subsonic Bullets and Powder are coming back online (mostly) so getting it isn't my concern. Product – 300 BLK admin 2021-04-27T07:51:30+00:00 300 BLK 144gr AM FMJ Everything from the propellant, brass case and 144gr FMJ bullet of this 300BLK round is made in Australia, by Australians, to deliver an outstandingly accurate low cost round for high volume shooting at the range or in competitions.The .300 AAC Blackout (designated as the 300 BLK by the SAAMI and 300 AAC Blackout by the C.I.P.), also known as 7.62×35mm, is an intermediate cartridge developed in the …Im sticking to the cartridge in ar only because it has a bit more oomf than 223 out of a small frame ar for close range thermal hunting, especially in its sbr state. In a bolt gun I would rather a 308 any day. The blackout in a bolt gun is a novelty. 308 with trail boss is equal to a 300, 308 with real powder is superior.Aug 9, 2022. #1. I got a new AR Platform based rifle in 300 Blackout. I built it myself with Aero Precision and a Proof Research 16" Barrel with Superlative Arms Adjustable Gas Block.. I plan to shoot this suppressed and want to use heavier bullets and stay subsonic. I have Lapua brass because I use it for everything I reload in rifle.Dec 5, 2015 · The velocity vs powder charge relationship was quite linear throughout this whole range. You can see that the 7.2 gr load that's right at the supersonic transition is very inaccurate as expected. The 5.6 gr loading on the surface seemed to group well and coincided with the bottom elevation adjustment of the scope (it's on a 20 MOA rail) at 50 ... The 300 Blackout is a rifle cartridge that’s more powerful than 5.56/.223 (AR-15 ammo) when fired out of a barrel that’s less than 16 inches long and works reliably with both …May 12, 2023 · While Hodgdon H110 is a high-performance powder, it can be difficult to work with due to its high pressure and burn rate. Careful attention must be paid to load development and case preparation to ensure safe and reliable performance. 2. Accurate 1680 Powder for 300 blackout. Reloading 300 Blackout: Further Loki Testing. The Hornady 208-grain AMax and 9.4 grains of H110 was a tad too fast. The average velocity was 1,069 fps, but the load’s extreme spread of 96 fps put a few rounds above the sound barrier. The average group size measured 2.21 inches, with the smallest at 1.039 inch.Fast or slow, it’s the right propellant for the 300 AAC Blackout While the 200 grain ELD-X bullet may look long, the CFE BLK powder is designed to take up just the right amount of space in the case. We were still able to get our desired powder charge and seat the bullet to function in a standard 5.56 AR-15 magazine.1059. Remarks: COAL: 2.200 inches; 5-shot 75-yard group (inches): 2.17. .300 Whisper / .300 AAC Blackout / .300 Blackout (Subsonic Pistol Loads) reloading data with 10 loads. Using bullets from Lapua SP Mega, Cutting Edge Subsonic Raptor. Powders include Accurate, Alliant, Hodgdon, Vihtavuori, Shooters World.300 AAC Blackout Full Length 2 Die Rifle Set. 015-7455547 | Lyman. $44.99. In Stock. MSR Precision Die System 300 Blackout 3-Die Set. 015-7690104 | Lyman. $70.99. Out of Stock. Lyman Pro Die Pack 300 Blackout.Here’s a short list if you don’t have time to read this wonderfully written article. Best Barrel Length Overall – 9 Inches. Best Barrel Length For Hunting – 16 Inch Barrel. Best Barrel Length For Subsonic – 7 Inches. Best Barrel Length For .300 Blackout Pistol s – 6 Inches. The 9 and 6-inch barrel lengths are what I recommended for ...The 300 BLK shoots .308 caliber bullets. 3. Suppressor-Friendly: You can shoot heavier bullets subsonic. The subsonic capabilities of the 300 BLK make it ideal for use with a suppressed AR. 4. Great Barrel Life: With a .30-caliber bore and a modest powder charge, barrel life is outstanding. 5.Performance Characteristics: 300 Blackout vs 308 Win. Once you’ve decided which rifle action you’ll be using, this is really where the differences between the two cartridges become apparent. The 308 is a medium-sized rifle cartridge with a powder charge somewhere around 36 to 46 grains with a typical 150-grain bullet.Posted by Alice Jones Webb on Aug 18th 2020. .300 AAC Blackout is hands-down, one of the coolest alternative AR-15 cartridges on the market today. This wicked cartridge is more than capable of dropping whitetails at 100 yards and ringing steel targets farther than that. And when you use subsonic ammo, the loudest sound you’ll ….300 AAC Blackout - Published Manufacturer Loading Data Shellholders: Hornady #16. Lee #4. Lyman #26. RCBS #10. Recipe Type: Rifle . Bullet Weight: ALL. 100 gr. 110 gr. 115 …3,470. Location. North Texas. Mar 16, 2022. #6. Not sure about temp sensitivity since the 300 blackout typically uses pistol powder. I use Alliant 300MP in mine and get phenomenal accuracy and velocity from an 8" SBR. I run the 110 Barnes TAC-TX at 2315fps from my 8"'barrel. The below plate was shot at 300 yards.300 Blackout 115 GR BER TGT FB Hodgdon Trail Boss .308" 2.050" 4.5 965 17,100 PSI 5.5 1,062 18,400 PSI 300 Blackout 125 GR NOS BT Hodgdon Trail Boss .308" 2.060" 6.1 1,060 21,300 PSI 300 Blackout 130 GR SPR HP Hodgdon Trail Boss .308" 2.005" 6.4 967 25,800 PSI Printed from Shooter's Reference on 05/15/2024: https://www.shootersreference.com/reloadingdata/300-aac-blackout/ It is no wonder why suppressed .300 Blackout SBRs and AR-15 pistols have become so popular: There's not much within 300 yards that a longer-barreled .300 Blackout rifle can do better, especially when paired with the right ammo for the application. ... The powder was also designed for optimal cycling through AR-15s, and it proved true …A 1-pound box of powdered sugar contains approximately 3 ¾ cups of unsifted powdered sugar. A 2-pound box contains approximately 7 ½ cups of powdered sugar.Feb 23, 2024 · The .300 AAC Blackout also burns powder faster than its .30 caliber siblings. You can also easily suppress a rifle that shoots this round to gain even more advantage. In terms of recoil, you’ll experience about 9 pounds to the shoulder. When it comes to penetration, this caliber performs well. Performance Characteristics: 300 Blackout vs 308 Win. ... The 308 is a medium-sized rifle cartridge with a powder charge somewhere around 36 to 46 grains with a typical 150-grain bullet. Common loadings include bullet weights between 150 and 180 grains. A 150-grain bullet leaves the muzzle of a 20-inch barrel at roughly 2,750 feet-per …Alliant Power Pro 300-MP Lake City Federal 205 18.7 2002 20.5 Ramshot Enforcer Lake City Federal 205 16.4 1977 18.2 Vihtavuori N110 Lake City Federal 205 16.1 1955 17.9 C Accurate 5744 Lake City Federal 205 18.0 1851 19.7 C IMR 4227 Lake City Federal 205 17.3 1859 19.0 C Accurate No. 9 Lake City Federal 205 13.2 1810 14.6Discover the best 300 Blackout powders for precision and power. Explore top-rated powders like CFE BLK, Alliant Powder, Hodgdon H110, and...April 30, 2015 By Dusty Gibson. The .300 AAC Blackout is likely the most versatile cartridge for the AR-15 platform. In fact, almost every ammo manufacturer loading this relatively newborn wildcat is offering specialized loads for specific purposes. Want to shoot 110-grain .30-caliber bullets at 2,250 feet-per-second (fps) through a 10-inch barrel?There are a number of different hunting cartridges out there, but one that’s proven is from Barnes. Barnes is a premium ammo, and it comes at a premium price, but the payoff is ethical hunting, and that makes it worth the extra cents. 4. Federal Premium Power-Shok .300 AAC Blackout 150 grain. Runner up for Hunting..300 Whisper / .300 AAC Blackout / .300 Blackout (Using 225 GR Hornady Bullets) reloading data with 45 loads. Using bullets from Hornady BTHP Match. Powders include Accurate, Hodgdon, Alliant, Winchester, Vihtavuori, IMRBut the largest and most visibly distinct difference is the bolt face for 7.62x39 and .300 Blackout. Because 300 BLK was designed to use the same bolt as 5.56 NATO, it’s stronger. A lot stronger. 7.62x39 requires a much larger bolt face and this makes for a thin-walled bolt that can and will break easier.It provides full function in modern sporting rifles throughout a range of bullet weights and is perfect for subsonic loads. In addition to being outstanding in the 300 Blackout, it performs well in many smaller capacity cartridges such as the 17 Hornet, 17 Ackley Hornet, 218 Bee, 221 Fireball and many more.Load Data for .300 AAC Blackout . Bullet: 125 gr BT (NOS) Diameter: 0.308" Powder: H110 (Hodgdon) Starting Powder: 15.7 gr. Max Powder: 18.5 gr . Primer: REM 7½ ...Jun 1, 2016 · These are powders that are typically marketed to the magnum pistol crowd, not the rifle folks. Left to right: 308 Winchester, 30 AR, 7.62×39, 7.62x40WT, 300 AAC Blackout 125 OTM, 300 AAC Blackout 220 OTM (subsonic), 300 AAC Blackout 125 Accutip, and 5.56x45mm What do you do if a recipe calls for baking soda but you only have baking powder, or if you have baking soda but not baking powder? As it turns out, there are options. You can make...Sierra is working on load data for 300 BLK. Due to the longer throat, it can take more powder and can give more velocity than 300 Whisper(TM). Before it seemed like only hand-loaders who were unaware or indifferent of the pressures could reach true 7.62x39mm velocities. With the BLACKOUT, you can find powders which actually …If you do a rough comparison of muzzle energy of the 300 AAC Blackout to the 7.62×39 (AK-47) round, you’ll see a slight edge to the AK with a 100 grain bullet. The 110 grain Blackout at 2,375 feet per second yields 1,377.4 foot-pounds of muzzle energy to the AK’s 1,650.8 at 2,600 feet per second. I can tell you that my experience is that once near compressed or compressed in 300BLK the Extreme Spread (ES) can get great. Yes you can pack more powder in and get a higher Max FPS but if you chrony 5 rounds you might have something ridiculous like 2465fps and then 2250fps back to back. That would kill SD as well. Ballistically almost identical to 7.62x39 or .300 Whisper, .300 Blackout was designed for military applications. But has also found a lot of use in civilian shooting.Tested Loads. After some testing and trials, I settled on the following components for my subsonic 300 Blackout loads for this article: Berry’s 220 grain 300 Blackout bullets. New Starline 300 Blackout Cases. Wolf Small Rifle Magnum primers. 9.0, 10.0 grains Hodgdon H-110 powder (See chronograph data below)The 5.56 fires 55-grain bullets about 3,100 feet-per-second (fps) and 77-grain bullets closer to 2,800 fps. The 300 Blackout, on the other hand, can be loaded with 110-grain bullets for 2,300 fps of velocity or 220-grain bullets for 1,000 fps. These radically different velocities translate to radically different trajectories.CFE BLK is a very versatile powder for both rifle and limited magnum pistol applications, best suited for .300 BLK subsonic and 7.62x39mm rounds. As a ball …for powder in the small Blackout case. An 8.3-grain charge of Alliant 2400 did the trick. Industries by resizing the .221 Remington Fireball to accept .308 bullets. The .300 Advanced Armament Corporation (AAC) Blackout resulted from a joint venture between AAC and Remington, the round SAAMI approved in 2011.There are so many different powders and bullets for .300 blk. A adjustable gas block can make lighter bullets still function the action. I shoot 147 M80 bullets for cheap plinker subsonics. Jhonnys reloading bench has some great videos of load development for a wide range of bullets and powders.300 AAC Blackout Test Specifications/ Components Firearm Used: Universal Receiver Barrel Length: 16” Twist: 1-8’’ Case: Hornady Trim-to Length: 1.363’’ Primer: Winchester WSR Remarks: The 300 AAC Blackout (300 BLK, or 7.62x35mm) was created by Advanced Armament Corp. and Remington in order to provide the military with a way to …The velocity vs powder charge relationship was quite linear throughout this whole range. You can see that the 7.2 gr load that's right at the supersonic transition is very inaccurate as expected. The 5.6 gr loading on the surface seemed to group well and coincided with the bottom elevation adjustment of the scope (it's on a 20 MOA rail) at 50 ...Lyman has an AR only manual, but then it uses Lyman molds. The first part of the manual is a good read. Go to Johnny's Reloading Bench on YouTube for the best 300 Blackout videos. Lyman 50th Edition has data for 160gr #311672 and 180gr #311332 using Rx7, H4198, IMR-3031, H335 and AA2230.You find .300 AAC Blackout with all common powders and bullets by clicking the 'Loads in this caliber' button above. Technical Specifications (based on the respective safety standard - see more details in tab 'Datasheet' if available)1680 is the best powder for AR platforms. If you are running a bolt gun, I would recomend trying N110. The 300 Whisper crowd has been using it in their bolt guns for years. It is very clean and provides great accuracy for my supersoninc 300 BLK loads. Reactions:CcoFirst.Designed for versatility and efficiency, the .300 Blackout bullet is a top choice for shooters looking to maximize their shooting experience. The .300 Blackout cartridge is uniquely versatile in that it can be loaded to be either subsonic or supersonic, primarily influenced by the weight of the bullet (grain load) and the type of powder charge used.17 Dec 2020 ... The COAL for the 300BO using longer bullets needs to be set so that your rifle functions. You may have to adjust it down and reduce the powder ...My favorite powder for 300 Blackout is H110. In my heavy barreled 16" 1-8 twist I have found 150 grn bullets to give the best groups. Hitting a dime at 100 yards is barely a challenge. ... The 300 AAC Blackout should fit as well as the key item is the magazine and it uses 223 magazines. The cartridge is a 223 case reshaped but the …With the popularity of the 300 AAC Blackout cartridge on a steady rise, more and more reloaders are trying to make the most out of this game-changing round. The 300 BLK became popular for the same reason most other equipment does: versatility. ... The powder also works well for 7.62x39mm and the .17 Hornet. Once we got our hands on …10mmShooter. 315 posts · Joined 2017. #3 · Sep 2, 2018. I have used Win 296 (same as H110) with good results in subsonic 300 Blk using Sierra 220gr and Hornady 208gr Amax shot out of a 8.5" SBR with a can. My favorite powder for 300 Blk subs is Accurate 1680, but it became scarce during the Obama days and I had to go with what I …
3,470. Location. North Texas. Mar 16, 2022. #6. Not sure about temp sensitivity since the 300 blackout typically uses pistol powder. I use Alliant 300MP in mine and get phenomenal accuracy and velocity from an 8" SBR. I run the 110 Barnes TAC-TX at 2315fps from my 8"'barrel. The below plate was shot at 300 yards.. Sharks calumet city il
300 Blackout Facilitates Versatility, Efficiency, and Resourcefulness. Aside from the ease of reloading, the .300 blackout rounds use powder efficiently and even use less powder than the .223 rounds, which means less cash spent on gunpowder. You can also use 5.56 casings if you don’t have enough brass.I'm thinking both of these powders really shine as subsonic powders. H110 Moreso if you do not need the extra gas to cycle say... carbine or unsupressed. From VV page n120 it can cycle 150 grain - 200 grain subs. I know it can cycle up to 240s. I wouldnt use it as a super powder. To slow and can't fit enough in the case.Anyone have a good load recipe for 300 blackout using 160 gr. lee .312 mould sized to .309 with gas check and powder coated. I'd like one using h4198 or imr 4198 as I have quite a bit of each. ... Hodgdon doesn't list these two powders for the 300 AAC with bullets lighter than 180g. They provide data for H110, W298, lil gun and I4227 …My favorite powder for 300 Blackout is H110. In my heavy barreled 16" 1-8 twist I have found 150 grn bullets to give the best groups. Hitting a dime at 100 yards is barely a challenge. ... The 300 AAC Blackout should fit as well as the key item is the magazine and it uses 223 magazines. The cartridge is a 223 case reshaped but the …10 Jul 2016 ... 230 grain subsonic powder coated cast lead. 300 blackout 1035 fps. From my new build. function, feed, and target test success! Enables reloaders to duplicate certain factory loaded ammunition. Density designed for proper cartridge fit. Principal Purpose: Magnum Handgun/Pistol. Secondary Uses: .22 Hornet. Remarks: 150529 - 300-MP; 1 lb. bottle. 150530 - 300-MP; 8 lb. canister. Canister Sizes: View All 300-MP Recipes. With the carbine gassed 300 BLK you are really limited as far as subsonic loading, but you should do OK with supers. The 4227 will do fine with the Lee AK 155 grain boolit. With the blackout and supers I just use starting jacketed data, and it usually is pretty close to accurate if I can get it to cycle.AR15/M4/M16 Compatibility. In 2009 the 300 Whisper / 300 ACC became the .300 Blackout (headstamped .300 BLK). This cartridge was much straighter than the 7.62×39, and the same overall length as the 5.56×45 (2.26 inches). The wonderful thing about this cartridge is that it was able to use every single part of an existing AR15 except the barrel. Which powders for 300 Blackout? I'm new to reloading and unsure which powders will suit my needs for .300 Blackout. I would like to experiment with two different loads; 125gr supersonic and 220gr subsonic. I've read that A1680 is the best powder for cycling the subsonic rounds in an AR. [ARCHIVED THREAD] - Alliant 300MP for 300 Blackout. ARCHIVED; Posted: 1/18/2014 12:43:58 PM EDT ... I did some initial testing with 300-MP powder today. 125 gr Nosler BT 2.100 OAL Alliant 300-MP Wolf SRM 10.5" bbl, pistol gas 18.0 gr 1848 fps Avg ES: 104 SD: 56White Bluff Tennessee. Posted December 5, 2020. Anyone loading 300 blackout with H110 and Hornady 150 gr FMJ? Loaded a dummy round to set COL at 2.20 I know the max is 2.260 but this round looks really long. It’s not even close to the cannelure. I measured some american eagle 150 factory and it’s much shorter.Jun 1, 2016 · These are powders that are typically marketed to the magnum pistol crowd, not the rifle folks. Left to right: 308 Winchester, 30 AR, 7.62×39, 7.62x40WT, 300 AAC Blackout 125 OTM, 300 AAC Blackout 220 OTM (subsonic), 300 AAC Blackout 125 Accutip, and 5.56x45mm – Or, for .300 AAC Blackout loads, try 0,68 g of N120 with 13,0g/200 gr Lapua FMJBT bullet Vihtavuori N120 powder is available in 1 lbs, and 1 kg containers and in the USA also in 8 lbs canisters.Based on feedback from shooting experts, the best barrel length for .300 Blackout suppressed is 8 to 10 inches. If your barrel is 8 to 10 inches, attaching a 6-inch suppressor will take the barrel’s length to 14 to 16-inches. At 16 inches, .300 Blackout barrel muzzle velocity is close to its peak, giving you a powerful weapon for making ...There are so many different powders and bullets for .300 blk. A adjustable gas block can make lighter bullets still function the action. I shoot 147 M80 bullets for cheap plinker subsonics. Jhonnys reloading bench has some great videos of load development for a wide range of bullets and powders.I just got a 300 blackout with a can and i reload, was wondering if any of you guys know a good quiet powder for the 300 blackout shooting 220 grain round nose? was going to try vihtavuori 340, but its a pistol powder, its also the quietest powder suppressed for my 9mm. Any input would be greatly appreciated. Thanks.Based on feedback from shooting experts, the best barrel length for .300 Blackout suppressed is 8 to 10 inches. If your barrel is 8 to 10 inches, attaching a 6-inch suppressor will take the barrel’s length to 14 to 16-inches. At 16 inches, .300 Blackout barrel muzzle velocity is close to its peak, giving you a powerful weapon for making ...7 Mar 2023 ... ... Blackout reloading project, Project Big Booty. I had a bunch of CFE BLK Powder hanging around and picked up some affordable 220g Berry's 300 ....