The 312 Bellm is very good.
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I will hold MOA with anything I load. With good bullets and load it will shoot 1/2 MOA. I also shot some 1 1/2 inch groups at 200 yards. I shoots good with .310, .311 and .312 dia. bullets. It is my best barrel. It kicks.
I got an encore because I did not see going for a G-2, I have an contender. I wanted to go to somthing heavy. Never had a carbine, so a 22-250 carbine I got. I had a .223 barrel for my contender.
I started out with with factory loads. Winchester 40gr and Remington 55gr.
3-4 inch group is all I got. I have tried 52gr match, 55gr match and hunting, and 60gr bullets. The load developmet has gone on from Spring to the Nex Weekend. Out of 400 round only two groups under an inch.
I started by adding washer under the fore end. It droped the size some. I got a hangar bar from W and free floated the barrel. It droped the sizxe abut an inch and half. Put new trigger spring in, made the trigger real nice.
I'll bet that after rechambering it will shoot good.
My chamber is very long, my reloads will not fit in any rifle.
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