64 BSB does indeed work well and will certainly hold up to 22/250 velocity, whether or not you get sufficient accuracy to suit you is another problem, but then it can be with any bullet, can't it?
'Four legs good, two legs baaaad."
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"Jimmy, some of it's magic,
Some of it's tragic,
But I had a good life all the way."
(Jimmy Buffett)
SotG
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