Johnny's Reloading BenchAn idiot and his reloading press My affiliate links and donation . The two key features that make the 300 BLK excellent for the AR platform, make it difficult to work with ina bolt action rifle; a short case and use of both super and subsonic bullets. Whether you are reloading to save money or to create the perfect load for hunting, self-defense, or suppressed use, there is load data and a suitable propellant for you. It is also widely considered to be the powder of choice for .410 bore shotgun shells. The twist rate needed to accommodate the heavy subsonic bullets makes finding accurate super sonic loads difficult. The latter has nearly twice the propellant, and is therefore better able to fell very distant game. Consult appropriate load manuals prior to developing your own handloads. I told him about my load development experience and he asked why I didnt use a 1:14 twist and a reamer with a short throat like he planned on doing. Subsonic rounds are particularly suited for use with a suppressed carbine. They are attempting give you the best information out there. The 300 Blackouts recoil is not significantly different from the 5.5645, and its price isnt prohibitively higher. Ordered 1:7 barrel to another gun, used same loads in exactly same conditions, no issues. If youre only feeding a bolt-action rifle or only slow-firing an AR-15, then a single-stage press, such an RCBS Rock Chucker, will work. A handloader using .300 Blackout has less case capacity to experiment with than they would with a full-power rifle cartridge such as .308 Winchester or .30-06 Springfield. Available in 1 lb., 4 lb. Quick Load program is, buy their own admission should NEVER be used over ANY published data. This I usually get from GI Brass Locker, though there are other sources out there.Primers will be whatever is prescribed in the load data that you obtain. VAT (where applicable), shipping costs and possible delivery charges. 5-2556 Review The needs of the various shooting disciplines differ greatly. Sierra 180Grain match king projo, 12.2 grains of powder. Match Grade. He had groomed his son, William Wirt Winchester as his successor, but the younger Winchester died of tuberculosis in March of the following year before he could assume control of Winchester Repeating Arms. How do you guys get different data for Win 296 and H110? For more information, go towww.P65Warnings.ca.gov, I have gotten great results when used to reload 300BK OUT, Love this powder. endobj Dillons dies for their machines can be pricey, but the company also generally uses a carbide sizing die. If you folks want really figures use quick loadthis data and noslers data is bogus. Second stupidly and even dangerously compressed loads Whereas the fixed distance competition shooter may be fine with higher magnification and precise .125 MOA adjustments, the military/law enforcement/tactical shooter is []. 220 g round nose / 9.9 g H110 cycles 8.5 and 16 barrels no issues. Free shipping for all bulk orders. The subsonic will be quieter through a silencer, while the supersonic will obviously carry more energy for tasks such as hunting. Nosler BT 19 grs. Nosler specifies a Winchester standard rifle primer. 7. It is an effective way to obtain ammunition for lower prices than equivalent factory ammo. Suggested subsonic load: R-P 300 AAC BLACKOUT brass Remington 7.5 primers 11.2 grains of AA 1680 powder Case length is 1.368 +0.000 -0.020 Sierra 220 MK loaded to 2.089 OAL (this length is optimal for reliable feeding from USGI magazines) . Reading a few different reports of accuracy issues with the cartridge in general (youll notice many of the sub sonic groups published online are shot at 25 yards!- more on this later), I came to the realization, that most of the good groups found with the cartridge were shot with either a special chamber (not a 300 BLK which has a long throat to accommodate the heavy bullets) or a slower twist rate to work well with the light bullets (SAAMI specifies a 1:8 twist, click link). I generally use a balance-beam version, as its less expensive, but if youre inclined to spend more money, you can opt for a digital. These guns have had mixed success. Pingback: NEW: Sierra Bullets .300 AAC Blackout Reloading Data - AK Arms, Pingback: NEW: Sierra Bullets .300 AAC Blackout Reloading Data | Firearms Life, They should. as well as finding the load data you're going to need. Testing both .308 versions of the Speer Gold Dot in 300 Blackout. I have seen a few complaints from people with barrels under 10, but better stability was found when switching to a 1-7 twist rate. I think 296 and 4227 are the same powders, not 100% sure though. This data is intended for subsonic use in firearms with barrel twist rates appropriate to stabilize the bullets listed. However, the .300 Blackout is available in both supersonic and subsonic loads, while the . I like my custom 300 BLK. Hodgdon reports that they are the identical powder under different labels.??? There tends to be a lot of newer 300 blk owners, and re-loaders joining lately, and I believe that will continue to grow. The rifle, as pictured above, includes the following parts fromBrownells: For testing and evaluation purposes, I used 125, 135, 175 and 220 grain Sierra MatchKings (left to right in photo below) over H110 and IMR 4227 powders. Although all Ramshot propellants are made in Belgium at the PB Clermont factory, it is a Hodgdon brand, benefitting from the companys decades of experience in smokeless powder manufacturing. Rifle Data Rifle Data Here you will find load data for some of the most recent cartridges on the market, with more being added each week. IMR propellants have long been used to manufacture US military service ammunition, such as .30-06 M2 Ball (IMR 4895) or 7.62mm NATO M61 AP (IMR 4475). IMR 4227 is a pistol powder with a medium burn rate, primarily intended for use in Magnum pistol and revolver cartridges. Accurate 1680 (AA1680) is a well-known double-base propellant with one of the fastest burn rates available. It was originally created for Winchester .410 shotgun factory ammo, but found use in 30 Carbine and magnum pistol loads. At worst, it puts you at risk of extreme and life-threatening overpressure. Turret- and progressive-loading press options exist from Hornady, Lee Precision and Dillon. The fast burn rate makes it ideal for use in subsonic loads, producing enough pressure to cycle the action even when pushing the heaviest bullets out of the muzzle. You might think I carry a gun because I don't trust God. A crowd favorite for pig hunting, deer hunting and general subsonic fun with silencers, it remains a strong choice for many shooters. There are also companies converting once fired 5.56 NATO brass (usually with the LC head stamp for Lake City) to .300 Blackout brass. As with IMR 4227, Hodgdon obtained the following load data using a 16 barrel with a 1:8 twist rate, Hornady cases trimmed to 1.363, and Remington 7 1/2 Small Rifle Magnum primers. Avg. Old Craftsman 6-inch dial calipers passed on the author by his machinist father alongside a Wilson .300 Blackout case gauge. 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Offcource in case of subsonic 300 BLK, forgot to mention, sorry. I have firearms in all three and I know some will disagree but for me, I would never use lil' gun in anything! I fired these in a Remington 700 at ninety yards without the suppressor attached. It is a compressed load and I have read about the dangers of compressing trail boss.. +1; Yup, TB gets really wonky if you compress it. x}% 9 V/@]Jz$Y-l7 m1#`2A2*tTfn2+O~W|S/_^Se=~oL/Ooh}k4m{zc{>{!w-77cz-Nnxo#j~_~t{pt/c|~z'Gc;2`gk)i,0 1cOh||z>3z L`];H\Gwyb^z-_.oWlw}E> So heavy a bullet conveys a subsonic muzzle velocity and correspondingly softer report. Good subsonic loads fired out of a suppressed weapon should be quiet enough that you dont need hearing protection. Have experienced some unstability problems with cans and 1:8 barrels with 220 gr sierras. A subsonic 300 Blackout round produces comparatively little muzzle flash in addition to a softer report, making it a fine choice for hunting in nighttime and twilight conditions. As Im sure you noticed, some powders handle a fairly wide variety of bullet weights. Just sayn, I switched to LilGun for 220RN sub groups we t down to under 1 MOA cycles 26 bbl great. Hodgdon's load data for H4189, H110, Lil-Gun powders (not that I'm using those powders) with A-Max 208's actually lists 2.26" as the OAL which is the max SAAMI spec. Effective range for hunting is about 100-150 yards. At 2.247 (with very slight variation on the press) fed find even with loading 30 rounds into a Gen 2 PMAG for me. Supersonic loads allow you to use lighter bullets and reach higher muzzle velocities. The target was a 2 orange dot printed on paper. I understand why the 300 BLK caught on in the AR and I also understand why didnt take off as much in the bolt guns. 1 pound. The 300 BLK is an interesting cartridge for the rifleman. At best, a powder charge that is safe to use with the lighter, shorter bullet may make it impossible to seat in the longer, heavier bullet. %PDF-1.5 Hodgdon produced the following load data using a 16 barrel with a 1:8 barrel twist rate, Hornady cases trimmed to 1.363, and Remington 7 1/2 Small Rifle Magnum primers. This will not be for specific loads, although some may be listed, but will be broken down for supersonic powders, subsonic powders, powders that work for both, as well subsonic powders for bolt action and single shot, and may be broken down more as things progress. gallantbullets.com May 3, 2020 #22 Pgohil Well Known Rokslider. An optimal powder charge fills up between 90% and 100% of the case, provided it doesnt result in dangerous levels of overpressure. The case manufacturer, Nosler or Jagemann (JAG), is listed on the table below. . It was easy to establish, reliable, repeatable results. The 300 Blackout's .30 caliber bullet can be made especially long, and as the result may weigh up to 220 grains quadruple the weight of the typical 223 Rem round's. So heavy a bullet conveys a subsonic muzzle velocity and correspondingly softer report.
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