Originally Posted by
turnburglar
130gr at 2200 FPS out of 12" is better than 7.62x39 in effeciency.
Yeah. Pretty decent performance from the short barrel. Actually the 130's are working better than I'd expected. I've shot them on paper out to 200 yards with pretty decent results.
I backed my load off a few tenths and am now getting a pretty solid 2,150 fps average. This is with the 130gr BTSP bullet.
Plugging in a BC of .400 and 2,150 as muzzle velocity I'm getting this data with a 50yd zero.
Depending on how tough these bullets are I assume we'd still see some expansion out to 250 yards or so. But that's a complete guess on my part.
Something I might mess with is a flat based 130gr bullet. That should give me a bit more case capacity. Maybe I can get a wee bit more velocity going this route.
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Last edited by Tokarev; 11-18-18 at 17:00.
“The rifle itself has no moral stature, since it has no will of its own. Naturally, it may be used by evil men for evil purposes, but there are more good men than evil, and while the latter cannot be persuaded to the path of righteousness by propaganda, they can certainly be corrected by good men with rifles."
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