Originally Posted by Rossimp
Originally Posted by Llama_Bob
You can always count on anyone advocating for the .30-06 to have all sorts of misinformation. You're no exception.

.308 AI shooting the 200gr Terminal Ascent. The top temp-insensitive powder is H4350 and velocity out of a 22" is right about 2600 at max load. It doesn't hit 2100 ft/s until 450 yards at elk elevation, and that's with a 200gr not some piddly 165. Not that it matters much, since the bullet is designed to work all the way down to 1350 ft/s.

You simply don't know what you're talking about.


LB, what is the case capacity of your 308 WCF AI in H2O? Also, how many grains of H4350 are you applying as Max Load?

Something like 59.5gr H20 fired with Lapua brass. I don't have my notebook in front of me, but I think there's an OBT node at 47.9gr of H4350 and about 2590 ft/s for a 22". That puts transducer pressure at about 63KPSI. Max is a little higher than that arguably in a modern rifle. I don't have my notebook handy so don't take that as gospel though - I could have flipped a couple numbers laugh

Last edited by Llama_Bob; 07/24/21.