300 whisper load data pdf

Looking for the best load data for 300 blackout using unique powder. Powders include accurate, hodgdon, alliant, vihtavuori, winchester, imr. Aac blackout, a standar dized commercial version of the. This information and data may vary considerably depending on many factors, including the components used, component assembly, the type of firearm used, reloading techniques, safety precautions practiced, etc. Cfe blk contains our copper fouling eraser ingredient, originally used in military propellant, which greatly deters copper fouling and contributes to longer periods of top accuracy with less barrel cleaning time. Its design parameters, in addition to the ballistics quoted above, were that it must be capable of being used in the ar15m16 family of rifles. Sierra offers load data for 300 aac blackout daily bulletin. By my ciphering, using nato brass anyway, that is the case full but not compressed point. Dec 21, 2017 this entry was posted in load data, reloading and tagged 300 aac blackout, 300 blk, 300 fireball, 300 whisper, advanced armament corp.

In 2011 the freedom group and advanced armament corporation aac announced the. Since the 300 aac blackout is an official saami spec cartridge now, hopefully more innovation in this platform will come about. The photo shows a 300 whisper loaded with a berger 125, with a sierra 240 match king next to it for comparison. The barrel has an 8 inch twist and was finished at 22 inches. The information displayed on this site, including ballistic data, was derived from tightly controlled laboratory conditions. Technical data sheet unsafe firearm ammunition combinations pdf. In developing loads for this cartridge, some published data required an excessively compressed. The 300 whisper was the first of the series, and, contrary to what you may have read about it, the fact of the matter is the cartridge was designed as a multipurpose cartridge from the beginning. They recently published updated and expanded data for the. Hornady manufacturing company develops and publishes reloading data for the. Brass is readily available, so tediously reforming.

Nosler reloading forum view topic 300 whisper loads. The use of a soft lead cast projectile, either plain base or gas check, or a cast round ball. Lil gun is a great shorter barrel powder, and noslers data for that load says 18. The 300 aac blackout 300 blk is a popular alternative cartridge in the ar15m16 m4 ar community. I had to ditch all the info i found and just spend a bunch of time with the chronograph. Oct 12, 2012 theres no real good load data for 300 blk yet for the bullet weights im using, so since 300 whisper is a lower pressure load one assumes it to be safe to use interchangeably. I am wanting to get a cast bullet load for just general shootingsteel plates, dirt clods. Whispers built after 1999 were dimensionally identical to the. A 19gn charge of lil gun drives the sierra 110gn jhp at 2390fps and the same weight of w296 gives the virtually the same velocity. By keeping the m4m16 in mind as the primary host during load development the. It provides full function in modern sporting rifles throughout a range of bullet weights and is perfect for subsonic loads.

Whisper s built after 1999 were dimensionally identical to the. Petty ome years ago i spent some time shooting with j. Sierra bullets 300 aac blackout load data sierra bullets. Te c h n i c a l l o a d i n g b e n c h ma y 2008 am e r i c a n rifle m an p rolific wildcatter j. The following data was developed in a sako model s491 rifle with a heavy stainless steel barrel from hart. I load supersonic 125 gr nos bt around 2400 fps using h110 and subsonic 1050 fps using n110. Be very careful as most of the load data i have found online for the whisper is way off. Maximum loads should be used with caution always start with minimum loads. Right click on the image of the load data and use save as. Jones of ssk industries began developing a wildcat cartridge at the request of us military special forces that became known as the. The 300 aac blackout is the most successful 30 caliber cartridge with these design parameters and been widely accepted whereas the. Click here for sierra load data for 300 aac blackout pdf file.

Powder bullet average extreme standard grains grains fpsfpe spread deviation 5. Jones, an exihmsa match director and owner of ssk industries, home of the hand cannon. I have a ruger american ranch rifle in 300 blackout. Objectives of the 300 aac blackout cartridge include. Recommended powder c compressed load 2 110grain tactx fb sectional density. The 300 aac blackout is a similar concept to previous wildcats, such as the 30221 and 300 fireball, as well as the proprietary 300 whisper, except that 300 blk was the first to be a saami approved cartridge and any company is free to make firearms or ammunition. For those loading 300 blackout ammunition and reloading. Te c h n i c a l l o a d i n g b e n c h loading the. Try the 220 rn, i think you will like them if you shoot mostly sub loads. On the other hand, our 300 whisper is going to be using a 220 grain 30 caliber sierra bullet moving along at a very leisurely 1050 fps almost half the speed of the 140 grain bullet.

The 100percent safe solution is,ofcourse, to use only the ammo ofthe. Well, there is not much extensive data for reloading either, but sierra bullets is trying to help change that. Unlike traditional manufacturing methods, our bullets are produced individually, on precision cnc machines for unmatched accuracy and explosive terminal performance. Foghorns 300 aac blackout load data the truth about guns. Using bullets from hornady vmax, berger tgt fb, nosler bt. Known for its ability to deliver heavy subsonic bullets for standard ar magazines while cycling the action in suppressed applications, it also works well with lighter supersonic loads, offering a similar external ballistic performance to the 7. This spherical propellant is designed expressly for the 300 remington aac blackout cartridge and meters very accurately. So, being the cautious guy i am, i started my load at 11 grains of h110. Low velocity compared to other loads and we usually expect this to be subsonic. 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. Im not sure why but i have found huge variations in gr of powder used. Lehigh defense continues to innovate with this new product line, methodically designed to meet the extreme demands of the law enforcement and military markets. The whisper also offered the versatility to push 125grain bullets at 2,250 fps, which significantly extended its range, but at the cost of increased sound. The bullet i really want to work for me is the rcbs 30180fn.