Better have a 1in 7" twist in .223 or a 1in 9" for 222-250 or bigger cases. I can't get 60 grain Nosler Partitions to stabilize in 1in 14" at 3500fps! Also I don't think that bullet has 'contolled expansion' as is necessary for proper deer loads. The Winchester Power point 64 grain DOES as does the 60 grain Nosler partition and the 55 grain Barnes X bullet and a Trophy Bonded . The Speer 70 grain Semi Spitzer holds together to about 3000fps and stabilized in 1-10" twist .223 and I shot a deer successfully with one about 1980 (in a mini-14 series 180).
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