zb338
Well-Known Member
How about the .280 and the 7MM AI. ?
Zeke
Zeke
Name | Bullet | Case length | Rim | Base | Shoulder | Neck | OAL | Case Cap | Overbore Index |
7mm-08 Remington | 0.284 | 2.035 | 0.473 | 0.470 | 0.454 | 0.315 | 2.800 | 47.8 | 755 |
7×57mm Mauser | 0.284 | 2.244 | 0.473 | 0.472 | 0.430 | 0.324 | 3.060 | 54.3 | 857 |
.284 Winchester | 0.284 | 2.170 | 0.473 | 0.500 | 0.475 | 0.320 | 2.800 | 66.0 | 1042 |
.280 Remington | 0.284 | 2.540 | 0.473 | 0.470 | 0.441 | 0.315 | 3.330 | 68.0 | 1073 |
7mm Remington SAUM | 0.284 | 2.035 | 0.534 | 0.550 | 0.534 | 0.320 | 2.825 | 69.2 | 1092 |
.280 Ross | 0.284 | 2.590 | 0.556 | 0.534 | 0.404 | 0.317 | 3.500 | 76.0 | 1200 |
7mm WSM | 0.284 | 2.1 | 0.535 | 0.555 | 0.538 | 0.321 | 2.850 | 76.8 | 1212 |
7mm Remington Magnum | 0.284 | 2.500 | 0.532 | 0.512 | 0.491 | 0.315 | 3.290 | 81.4 | 1285 |
7mm Weatherby Magnum | 0.284 | 2.550 | 0.530 | 0.511 | 0.490 | 0.312 | 3.250 | 85.0 | 1342 |
7mm STW | 0.284 | 2.850 | 0.513 | 0.532 | 0.487 | 0.315 | 3.600 | 92.6 | 1462 |
7mm RUM | 0.284 | 2.850 | 0.534 | 0.550 | 0.525 | 0.322 | 3.650 | 108.1 | 1706 |
So the AI with the right powder gets 7mm Rem Mag velocity with less powder. Yeah I think I am tracking efficiency based on my first post stating that the purpose of WSMs was using a short, fatty for a theorized more even efficient powder burn. As lessons learned from the Benchrest folks. In the end pick what meets your WEZ-Weapon Engagement Zone.Your question missed the mark. Effency is about more with less. The .243 and the 6 Dasher is a good example. The Dasher can do what the .243 does with less powder. That's effecient.
I don't understand. The 260 has 53.5 gr H2O ( Remington Brass ) and the 6.5 creedmoor has 52.5 gr H2O. ( Hornady Brass ) I do have Hornady brass for my 260 and my 6.5 Creedmoor and the 260 has 2 gr H2O more than the 6.5 Creedmoor.Well an example would be a 260 and a 6.5 creedmoor have SIMILAR cases but different cartridges don't tend to be exact...in my example of the creed and 260 rem, they are different, or they would be the same cartridge which they are not.
You are going to have to give specific cartridges to compare if you want any serious input. Not that it's impossible but I can't think of any caliber specific case that is the same as another cartridge but not that cartridge, and one is better than the other.
I was thinking "ahhh no...FEENIX got em on the first post of the thread." Lol
I'll hold my popcorn gif depending what happens.