Originally Posted by BobinNH
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.


3050 is what I'm hoping for just was trying to see if I need to get a jug of H1000 or if anyone had any data on 7828. 3200 with a 160 is plenty just trying to get some ballpark numbers as a start. Got some cases ready to load.

I know yourself and others have said 7Bee data is safe but just trying to do a little extra due diligence.