Biggfoot44
Ultimate Member
- Aug 2, 2009
- 33,162
Or rather than compare the momentum. Not listed as seperate line item in most charts , but simply multiply bullet weight by velocity.
Using an example from .45acp ; 185jhp vs 230 whatever, in std velocity . The 185gr will have a cpl more ft lb than a hardball @825fps , but 10% less momentum( aka simplified recoil ) .
In .38spl , can find similar comparisons in 110gr vs 158gr . Or more to this thread , a 125gr FP loaded to same vel as 148gr WC will have. 15% less recoil . And that is a valid comparison . SASS style 125gr loads will have similar or slower vels than 148 WC of factory loading, or the iconic BE powder load .
Yes , the WC is better for one hole groups . But more "normal" shaped 100-125 FP have less bearing surface ( aka bore friction , simplified ) and can be driven slower w/o concerns about sticking a bullet in the bbl .
Using an example from .45acp ; 185jhp vs 230 whatever, in std velocity . The 185gr will have a cpl more ft lb than a hardball @825fps , but 10% less momentum( aka simplified recoil ) .
In .38spl , can find similar comparisons in 110gr vs 158gr . Or more to this thread , a 125gr FP loaded to same vel as 148gr WC will have. 15% less recoil . And that is a valid comparison . SASS style 125gr loads will have similar or slower vels than 148 WC of factory loading, or the iconic BE powder load .
Yes , the WC is better for one hole groups . But more "normal" shaped 100-125 FP have less bearing surface ( aka bore friction , simplified ) and can be driven slower w/o concerns about sticking a bullet in the bbl .