300 whisper load data

They will, just as you had, come up with a clone of the Whisper and Blackout. One, the Whisper bullet's muzzle velocity is similar to the remaining velocities at 100 to 150 yards of other, more common hunting cartridges. After experimenting with the Whisper for a short while, I moved on to other new and/or interesting rounds.

Top. Today, handloading the .300 Whisper/AAC Blackout is no different than most other bottleneck rifle rounds. I did need to carefully adjust the sizer die in order to achieve correct headspace. Hornady's 140-grain MonoFlex bullet has relief grooves formed in the shank.

.300 Blackout Vs .300 Whisper: Is There A Difference? The positives of the .300 Blackout and Whisper are obvious. I still have no experience with subsonic ammo fired in a suppressed rifle, but common sense tells me whatever is on the receiving end of a 200-grain bullet traveling at about 1,000 fps is in big trouble. It wasn't a SAAMI standard round, and back then only CorBon offered factory-loaded ammo. In order to recover bullets, I had to wrap the block on all sides with Kevlar vests. by plant.one » Fri Jan 16, 2015 2:58 am, Post A bullet with a higher BC loses less velocity as it goes downrange, so the net is not to lose as much when it reaches to the target.

Moderators: gds, bakerjw, renegade, bamachem, Post All Shooting Times subscribers now have digital access to their magazine content. Target shooters don’t care. I'd read about having to turn necks when reworking .223/5.56 cases, but my handloads would always chamber and fire reliably without having to do that. In developing loads for this cartridge, some published data required an excessively compressed powder charge, which bulged the case body just below the shoulder when seating bullets, effectively ruining the case. Powders include IMR, … When I began shooting in the early 1970s, the bullets available for .30 rifles for target shooting were not many. Well, there is not much extensive data for reloading either, but Sierra Bullets is trying to help change that. In 2011 The Freedom Group and Advanced Armament Corporation (AAC) announced the .300 AAC Blackout, a standardized commercial version of the .300 Whisper. The internal thickness of .223 and 5.56 brass is not a rigid specification once you get down past the case neck. Those customers (or a certain subgroup of them) wanted a subsonic, heavy bullet, autoloading cartridge that would work with in their platform. Wind, however, does. The '.300 Whisper', a CIP standard, is one of many cartridges designed to shoot heavier bullets (200–250 grains) at subsonic velocities..300 Whisper is also known as .300 Fireball or .300-221.The 300 AAC Blackout is the most successful 30 caliber cartridge with these design parameters and been widely accepted whereas the .300 Whisper has fallen into disuse. Not knowing just what to expect, I thought 2 MOA was acceptable performance for this cartridge/rifle/optic combination. The 300 AAC Blackout is the most successful 30 caliber cartridge with these design parameters and been widely accepted whereas the .300 Whisper has fallen into disuse. There is no way to tell you that in you rifle. In either loading, the .300 Blackout and Whisper do not use much powder per shot, so if you reload, powder costs are about as small as they get. Whisper’s built after 1999 were dimensionally identical to the .300 Blackout and are fully interchangeable; however, the latter features a .015-inch longer chamber throat. Currently working on loading for hand pulled 7.62X54R 147 Gr. by TNFrank61 » Fri Jan 16, 2015 2:06 pm, Post J.D.

Get the latest news and reviews from Gundigest.com. However, it does it with a carbine or pistol that holds 30-round magazines, and can be teamed with a red-dot or magnifying optic. Disclosure: These links are affiliate links. Magnum pistol powders such as H110 work well for supersonic loads. LPS resized to .308 . V • SSP RELOADING DATA. I've compared some .pdf data from Nosler with similar bullet weights and it look like the Hornady 300 Whisper data at max load may be just a bit hot but I know that data from different manuals can be all over the place. So even with a lower starting velocity, the 240-grain .30 bullet will drift less than a 168-grain bullet in the same wind. You could find a 168-grain match boat tail. Or, assuming you could find someone who didn’t already know about either, and who knew enough about cartridges, pose them this problem: a .30 bullet, as heavy as possible, in a parent .223 or .221 Fireball case, that has to fit an AR magazine, feed reliably and use an unmodified bolt. The .300 Whisper was developed by cartridge wildcatter J.D. (The ballistic performance similarity.). Whisper’s built after 1999 were dimensionally identical to the .300 Blackout and are fully interchangeable; however, the latter features a .015-inch longer chamber throat. It clocks in from just under supersonic out of a carbine-length barrel, to just over 1,000 fps from a stubby eight-inch pistol or SBR tube. The 240, in any given cartridge, has to be going slower, simply because the pressure limit of the cartridge determines the maximum amount of energy you can use to push the bullet. Developing them brought many... Because case prep is the most time-consuming step in the handloading process, we say any tool... Give a Gift   It was based on the .221 Remington Fireball case necked to .30 caliber and had an overall length of 2.260 inches - same as the .223 Remington - allowing it to function in the AR-15 rifles and magazines. Handgun shotshells are more complicated than one might think.

The Whisper also offered the versatility to push 125- grain bullets at 2,250 fps, which significantly extended its range, but at the cost of increased sound. I even tried a couple of near-subsonic recipes. You can shoot subsonic ammo, and that makes the rifle or pistol very quiet. In either loading, the .300 Blackout and Whisper do not use much powder per shot, so if you reload, powder costs are about as small as they get. I should mention also that Barnes, Hornady, Remington, and possibly other ammo manufacturers offer factory loads in .300 Whisper/.300 AAC Blackout, and I was able to purchase several boxes of it at my local gunshop. 125 grain (8 g) bullets will reach 2,400 ft/s (730 m/s). We ping steel with a .300 WinMag at over a mile. In developing loads for this cartridge, some published data required an excessively compressed powder charge, which bulged the case body just below the shoulder when seating bullets, effectively ruining the case. A new ammo maker burst onto the scene, in the form of the .300 Blackout. (The ballistic performance similarity.) Heavier than that, there were only hunting bullets. Subscriber Services. Differing wall thicknesses meant some rounds would not chamber unless the formed case was reamed. Whisper data and blackout data is virtually identical but Hornady list velocities for a 16" barrel IIRC. Well, they didn’t. The .300 Whisper was his AR-15 cartridge for quiet shooting. Hornady 8th Edition Manual, 300 Whisper data for 300 Blackout? In developing loads for this cartridge, some published data required an excessively compressed powder charge, which bulged the case body just below the shoulder when seating bullets, effectively ruining the case. .300 Whisper is also known as .300 Fireball or .300-221. .300 Whisper / .300 AAC Blackout / .300 Blackout (Hodgdon Data) reloading data with 73 loads. As I recall, I then just full-length sized them and added primer, powder, and bullets.
Barrels with a 1:10 twist will stabilize 220 grain (14 g) bullets at subsonic speeds. A modern, expanding, .30 bullet of 110 to 125 grains, out of one of the .300s is soft in recoil, not overly noisy, and more than enough to bring down a whitetail. The .300 AAC Blackout has succeeded as a commercial cartridge while the Whisper never achieved wide acceptance. Editor's Note: This article is an excerpt from Cartridges of the AR-15, available at GunDigestStore.com. AR-15 Lower: Putting The Internals Together, Upgrades: Top AR-15 Parts And Accessories (2020), 7 Gun Sales Worth Catching: AR Build Special (Oct. 29, 2020), First Look: CCI Maxi-Mag Clean-22 Segmented Hollow Point 22 WMR, 9mm Luger Winchester 115gr 20 rounds $24.99, 9mm Luger Winchester 115gr FMJ 200 rounds $73.99, 7.62x39 TulAmmo 122gr 1000 rounds $0.34/round shipped, 6 On-Target Concealed Carry Insurance Options (2020), 9 Affordable Double-Barrel Shotgun Options (2020), 8 Budget AR-15 Options: More Bang For The Buck (2020), Best Concealed Carry Handguns For Women (2020). If we assume a bullet design has the same ogive, and boat tail, then the only way to change weight is to make it longer. The .300 Blackout is here to stay, and we take some time to look at new technology surrounding this cartridge. LOL, I've still got some 9x19mm loaded up with some Nosler 124gr HP's that I need to shoot as some Sunny D jugs that I've been saving up to see how it expands. The higher the BC, the more efficiently a bullet passes through the air.

And those were pointed, match bullets. So, the engineers at AAC had to start essentially from scratch, to design, refine, test and offer for certification, a new .30 cartridge to fit the bill.
by TNFrank61 » Fri Jan 16, 2015 1:24 am, Post Six major concealed carry insurance programs are now available to the millions of Americans who carry concealed. Get the 74th edition of the World's Greatest Gun Book. This topic is about load data using 300-MP with all bullet weights, supersonic and subsonic, 110 to 220+ for the education and improvement of this particular caliber with a specific powder. You must be a subscriber to see the full article.

I have complete faith in my Lord. Firing in the .300 Whisper chamber results in a slightly sharper shoulder. .300 Whisper description from AR15barrels.com, https://en.wikipedia.org/w/index.php?title=.300_Whisper&oldid=960145728, Creative Commons Attribution-ShareAlike License, This page was last edited on 1 June 2020, at 10:32. "Never forget those who have died; Never forget who killed them.". I found the Sierra data interesting as it was tested with a T/C w/10" barrel, same length barrel as my AR Pistol. For long-distance shooting, the competitor has two problems: distance and wind. "Whisper" is a registered trademark of SSK Industries. To call him a prolific inventor is to use “prolific” lightly. Among the many products shown these past few years was a Smith & Wesson M&P15 carbine chambered in .300 Whisper/.300 AAC Blackout. |   I don't have my load info available at the moment but i think 180 grain sst's with 4 grains of trail boss worked in my 14 inch barrel. However, reloaders have found the .223 Remington or 5.56×45mm NATO works well when shortened and resized to .30 caliber. Awesome caliber i.m.h.o. My first experience with the .300 Whisper came when I was developing load data for the 5th Edition Hornady Handbook of Cartridge Reloading more than a decade ago. Using bullets from Hornady V-Max, Berger TGT FB, Nosler BT, Speer HP, Sierra HPBT, Nosler HPBT, Hornady InterBond, Hornady BTHP, Speer SP, Hornady A-Max, Berger TACT. The idea was simple: take a .223 case, expand the neck to hold a .30-caliber bullet, shorten it so the neck would hold the bullet at the proper place, and fit it all into an AR-15 magazine. I’ve talked to people involved, and they did their due diligence, and worked it up properly. It probably isn't needed, but the seater die can be adjusted to apply a crimp - so I did. They recently published updated and expanded data for the .300 AAC Blackout caliber getting into more subsonic and heavier grain weight data; two areas that are typically lacking for information. You might not like that, and want deeper penetration, but I have to think that a 208-grain, .308 bullet, going sideways, is going to get a lot of the job done, if not all of it. They use a 208-grain A-Max bullet for that load. All Rights Reserved. The 110- and 125-grain handloads would readily dispatch any coyote or chuck within 150 yards or so, and the 130-, 150-, and 168-grain ammo, properly placed, is just powerful enough to take a porker or whitetail.

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