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Old July 24, 2011, 09:06 AM   #30
BDS-THR
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Join Date: June 12, 2010
Posts: 474
For most 200 gr SWC, .470" taper crimp and 1.25" OAL has been the match standard for many and you can use these dimensions as reference.

Depending on the pistol/barrel used, some modifications are needed on the round, but for most pistols, .470"/1.25" should work.

SAAMI max for taper crimp is .473" and 1.275" OAL for RN bullet. Although tighter 1911/match barrels (I used Wilson Combat barrel in my match 1911) require less taper crimp than SAAMI max, my M&P45 feeds/chambers .472" taper crimped 200 gr SWC loaded to 1.27" without any issues.

For greater accuracy from bearing surface of the bullet engaging the rifling sooner, I load 200 gr SWC as long as it will reliably feed and chamber.

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