08-08-2011, 02:44 PM
LRRPF52 Wrote:Variable, is the Grendel more in the same boat as the 7.62 with regards to suppressed report?Kind of embarrassing, but I don't know.:o I don't have any 308 semi platforms anymore, and we don't have them at work either, so I can't really make an honest comparison. I dumped all of my semi 308s a long time ago, and only have an old Remmy PSS bolt gun left. I never really paid that much attention to the ballistic crack between different cartridges. When I ever get around to shooting the Remmy again, I'll try to compare them (with my poorly calibrated mk1 "earball" anyway.LOL). I don't expect it would be fair to put a bolt gun against a semi, but maybe I can aurally edit out the action noise somehow.
I should probably get another 308 at some time, but with the toy fund currently near empty, it'll be a while. I expect you are probably right. I don't know if raw velocity plays a part in it or not. Sorry I couldn't be of better help though.
FWIW, the 5.56 rounds do seem a little "crisper"/"sharper", but I have no idea how that would pan out on a meter. If sound pressure levels were equal, and they were just higher in pitch, I'd bet they probably fall off faster at distance. I couldn't responsibly say for sure though.