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« on: January 26, 2020, 05:34:43 PM »
I am by no means a expert.
First off you mention practical matches. The accuracy part wanted or needed is that of a true rimfire BR rifle? I am assuming you are talking a rifle that is more conventional than BR? Meaning conventional stock versus 3" wide. This would be a repeater and not a single shot?
What rules regarding the rifle configuration?
Anyways, the best way to look at barrel length is, you have to use a smith who understands rimfire builds. Length for a BR rifle is based on the slugging of the barrel to cut it at the tightest point. It is also nice to get a good balance point when achieving this. Rimfire chambering is another animal. There is some lapping involved to do the perfect rimfire chamber. I know I may get flamed for this but you are best to talk to a top smith States side. I know if I were doing a build it would be across the line and imported in.
Barrel, as Dennis said many good ones but my choice would be a Shilen Ratchet.
About all I can say on this.
Calvin