Quote:
Originally Posted by Dick284
Ok.
Go make some loads up with you’re 26” bbl’d 280AI and report back your findings.
For the record, I’ve got a 25” gain twist .280AI, and albeit a slow twist rate. Getting much over 3050 with 150’s resulted in horrid case life.(high pressure) I can’t see 3 k with 160’s as a high return proposition.
And seeing that cracking the 3k mark with a 160’s in a 7 Rem Mag is doable but you’ll ride the upper end of the pressure threshold to do it. Again this is real world numbers, and dispense with the fast barrel slow barrel stuff too, we tested 5, 24” bbl’d 7 Rem mags and fastest to slowest in barrels was a whopping 25fps, on average.
I’ll still call it a highly unlikely endeavour.
Enjoy this video.
https://youtu.be/N1Sw8fe9hJI |
I agree with dick my 7 with 24" barrel I never chrono it before always shot factory ammo, with 150 Federak blue box velocity says 3110 my lowest was 3040 average 3090 shot 10 rounds. With Barnes 160 velocity says 2950 I was averaging 2980. The 140 ttsx was averaging 3150