Originally Posted by Ackleyfan
Originally Posted by Mark R Dobrenski
I could be wrong seven_miller but I believe they're using a new prototype powder called H75KPSI that just came out this year...... blush

Dober


More like +85KPSI, most guys were running them pretty hard to get 2950 with the 180's in the 7WSM, a 195 is alot of bullet in that short fat case and I think a better bullet for the longer cases, but what a LR missle it would be!


Well, you have to figure even if just intuitively, that 2950 is about what you get with a 180 gr 30 caliber bullet in the 300 WSM;a 7mm bullet weighing 15 gr more with less base for the gas to push on,(and likely more bearing surface because it's longer)is going to be harder to get to the same velocity in a case of the same capacity...and only one thing will do it....more pressure.

I could be all wet here, but in a case with the capacity of the 7 Rem mag and 7mm WSM, I'd be happier with something like a 162 Amax myself.You'll start it faster for sure, and the 195 might catch up, but at what distance I don't know.. frown

Numbers anyone?.......anyone? grin




The 280 Remington is overbore.

The 7 Rem Mag is over bore.