Slow twist 22 CM…

[Jspeed1440]

I’ve got a 1:12” 22CM for 55 gr bullets in the late stages of being done. I understand many of the reasons why most would disagree with my choices thus far, but that ship has sailed. I would like to hear from anyone who has done the same, and has first hand experience regarding SAAMI spec freebore (.081”)…how do you like this setup, or did you use a custom reamer with less freebore….wish you would have done anything differently regarding your reamer? Thanks in advance…

 

[DAA]

That's a ton of freebore for 55's. I'd do not more than .025.

- DAA

 

[spotstalkshoot]

That FB is likely very similar to a lot of factory 22-250 barrels, in my experience the 55 NBT is very jump tolerant. I haven't measured/compared the 53 vmax to the NBT lately, a long bearing surface bullet will help you. For coyote the NBT would be where I would start.