I shoot cast bullets in my .223 Rem, .22-250 Rem, .243 Win, 7mm Rem Mag, .30-06, 8mm Rem Mag, .378 Wtby Mag, .444 Marlin, & a .45-70....and neck size them all. I do believe I get better accuracy doing so, but do admit that the difference is not is not dramatic.
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