nv:With the old stand by single base propellants like 7828,H4831,even H 1000, you are going to see something like 3050-3075 from a 175 gr bullet. Powders like RETUMBO,and RL25 will show a bit more.

With those two powders a 160 will show up to 3250 with no concerns in any 24" barrel I have seen used

I don't like to see any more than a hair under 3100 with the 175; nor more than 3250 with the 160 from the case and 24" barrel, regardless of powder, although longer barrels will show more speed.

I think those parameters were designed into the cartridge 50+ years ago and create a very potent open country BG cartridge.




The 280 Remington is overbore.

The 7 Rem Mag is over bore.