catnipman Posted November 8, 2005 Report Share Posted November 8, 2005 I was recently looking over the SAMMI .45 ACP pistol cartridge and chamber specifications, and noticed the large variation in allowable cartridge overall length (COL), namely 1.190 - 1.275 inches. I was wondering if anyone has an opinion about what, if any, is the optimal COL for the TSMG? Link to comment Share on other sites More sharing options...
Bill in VA Posted November 8, 2005 Report Share Posted November 8, 2005 I load mine to 1.275" COAL. Either way though, you're looking at a difference of .085 and since the .45 acp headspaces on the case mouth, COAL in a TSMG shouldn't make much of a difference unless your feed ramp is out of spec. Link to comment Share on other sites More sharing options...
PK. Posted November 8, 2005 Report Share Posted November 8, 2005 If the cartridges are short, you may have trouble with drums especially. I load my 230 RN 1.270 and all is well. SWC styles will give you grief in drums also. Link to comment Share on other sites More sharing options...
JimFromFL Posted November 8, 2005 Report Share Posted November 8, 2005 I have been using 1.260 with great success. Disclaimer: Of course your length of cartridge should be determined by the manufacture of the powder and/or bullet manufacture being used. Link to comment Share on other sites More sharing options...
catnipman Posted November 8, 2005 Author Report Share Posted November 8, 2005 Good advice. thanks much. I think I'll give the 1.270 a try. I've been loading a little bit shorter than that. Link to comment Share on other sites More sharing options...
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