![]() 300 Whisper ® load.įor the sportsman, the. By loading the 300-grain Sierra HPBT MatchKing bullet at subsonic velocities (1,040 ft/sec.) for suppressed applications, the muzzle energy measures 720 ft-lbs., surpassing both the high velocity 115-grain load for the 9mm Parabellum as well as the 240-grain. 338 Spectre will launch the 180-grain BT at 1,800 ft./sec., approaching 1,300 ft-lbs. 35 Remington or even the 180-grain load for the. 338 Spectre offers something for everyone.īallistic performance is comparable to the. With it's ability to launch a wide array of bullet weights combined with it almost non-existent recoil and extreme accuracy, the. ter Weeme to expand the load data and look at commercial production of the ammunition.Īfter a bit of R&D we found that there are several powders that work very well, consisting of the slower magnum pistol powders and fast burning rifle powders. In November of 2005 Reed's Ammunition & Research got together with Mr. The cartridge has a wide array of applications Including small to medium game hunting, match target, and suppressed sniper shooting. The "sales pitch" and pictures follow below I do not have pictures of the 300 gr load tests but Ron reported that they started tumbling IMMEDIATELY upon striking the target. With the 250 gr loads, tumbling occurred after as little as 6 - 8" of penetration and the projectile penetrated a full 24" before lodging against the back stop. 300 Whisper's ability to tumble with subsonic loads, Ron did ballistic gel tests that unequivocally put the debate to rest. Having read an article casting doubt on the. Loads range from 160 gr up to 300 gr subsonics and Ron reports excellent accuracy and energy retention. 338 Spectre ammunition is now available from Reed's Ammunition and Research ( Ron has developed a number of loads using our 12.5/4.5 T&E upper that cycle the shorter barrel/gas system without an issue. We are happy (and proud) to announce that factory loaded.
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