I've been debating on the same. I've got a 260 Remington Bolt Gun I had custom built that shoots awesome. I'm curious as to know if 6.5 CM and 260 Rem are similar enough that the reports I'm hearing of guys running 18 and 20in barrels on gas guns and getting good results at 600+ yet are true. Just wondering how much velocity loss there is in that short of barrel as my barrel now is 24in.
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