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  • Re: Twist rate of bbl.
    • Andrew (Login spEKTre)
      Posted Jan 2, 2017 10:29 PM

      I have tried the AP70N but found the lighter loads tend to spit out unburnt powder but it is really soft to shoot. The spartans are polymer coated ( green ) and are .356 and after some more test this morning anything under 1050 fps and the groups open up, I'm thinking of trying 1100fps to see if it gets tighter or stays the same. Had no joy with the 2.1gr Bullseye 100gr SWC out of my 1500 revolver but, thinking because my twist rate is 1:16 that it needs to go faster than the 700fps to stabilize.
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