Re: M&P 15-22 with short/12" barrels from new
Posted: Tue Dec 06, 2016 7:08 pm
Nice bit of scientific research there, not.Nelly2014 wrote:"I still wouldn't go with a barrel shorter than 16 inches. We took a long contender barrel and started cutting it down an inch at a time to see what the effect of barrel length would be. Every time we shortened the barrel we test fired it off the bench and also through a chronograph. Muzzle velocity started dropping off at 16 inches. Accuracy started to suffer at about 12 inches. I can't remember for sure what ammo we were shooting, but I believe it was RWS R-50.
By cutting the barrel too short, you will be compromising the silencer by not getting a complete powder burn before the bullet exits the barrel. If you can stand the extra couple of inches, I think you would be better off to leave them"
I found this on a US rimfire site and it reminded me of this old debate.
All conjecture (no facts to back up their results) & they cannot even recall the one brand of ammo they used.
NASA must be bricking themselves......as are ALL the firms making
.22 pistols!