Stafford Posted December 22, 2021 Share Posted December 22, 2021 Sig makes a 365 fmj 115 grain with a published velocity of 1050. I would assume this is out of the 3.1 inch 365 barrel. What type of velocity would likely be produced from a 4 inch or 5 inch barrel? Link to comment Share on other sites More sharing options...
AHI Posted December 22, 2021 Share Posted December 22, 2021 Back when you could actually get this ammo . We came to the conclusion that the "365 Ammo" . Was just a marketing gimmick. The ammo marked 1185fps was the same as the one marked 1050. You may get different results. Link to comment Share on other sites More sharing options...
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