Dad nab it! I have shot every rifle in the shop with every kind of bullet and powder I can find to stuff in them and still haven't found one bolt gun thats making me happy......but......
Murphy's new high end AR in 308 got my wheels turning(they turn slow now-a-days). About the only thing that I know about AR's is that bunches of them have left the shop since the foreigner got elected into the head office. The Rock River appears to result in the most satisfied customers with the Bushmaster running in the second spot. The DPMS batted 50% for pissed off customers bringing them back because they were broke.
Soooo...I grabbed a brand new 16 inch RR Predator Pursuit off the rack and a box of Blackhills 50 grain Ballistic tips and went shooting. After zeroing in I let the gun cool while I had a soda pop and shot corn cobs floating down the creek with my Glock.
What I am after is a gun that will fit the bill for the centerfire USBR 100 meter shoots that are being held in several locations close to home this summer. The targets used in these shoots consists of a sheet of paper with 25 bulls eyes on it! The X ring is a mere 1/10 of an inch then there are circles around it with degrading values just like any other target! Each shooter has 20 minutes to fire 25 shots...1 at each bull. My problem so far with the bolt guns is that even when pacing myself and using up all 20 minutes the gun still heats up. Many of these bolt guns will shoot an honest 1/2 inch group at 100 meters for 3 rounds, however they fall apart when trying to shoot the required 25 shot string.
Todays outing with the Predator Pursuit was very encouraging. All 25 rounds fired after the initial sighting in went under an inch. That still needs to be cut in half in order to be competitive. The fact that this is the initial group fired with store bought ammo and no load development as of yet has me smiling.
What I don't understand is why? The AR barrel felt every bit as hot as the free floated barrel's on the bolt guns. It has to be something to do with the harmonics remaining the same through the temperature increase.
Is this a characteristic of the AR platform? If so why were so few being used at the shoots I attended last year. As I recall most of the guns used were "tactical"/"Varmint" bolt guns....several 40x Remingtons. The one guy that was shooting an AR was sucking hind tit.....that coulda been the shooter.....I'll leave it at that!
Murphy, I would appreciate your input on this both in general and maybe a recommended bullet/load for a 223 with 1 in 9 twist and 16 inch barrel.
I'll welcome all input because I'll bet your all smarter than me concerning ARs!
Will I need small base dies?
Thanks in advance, EKC