Originally Posted by joelbiltz
Or you could go with a 7 mm LRM. 375 Ruger necked down..... I'm shooting mine with 71 gr of H 1000 and am getting 3035 but its so darn accurate its scarey.


Here's a good example...Joel is getting 3035 with 71-H1000 180 Berger (barrel length not stated)with the Dakota. I get 3075 with the 175 NPT and 73-H1000 from a 24" Mashburn.Close enough.

A necked down 375 Ruger is the 7mm Dakota,for all practical purposes.All three of these cartridges are different versions of the same thing.

In the Mashburn,I have seen the same velocities with H1000, Retumbo, RL 25 and H870,with different rifles and Krieger,and Rem 700 tubes.....all are 24".

Some of this will vary depending on barrel length,and type of barrel;but across the board these cases all give up the velocity easier than the smaller capacity 7mm's,especially with 160-175 gr bullets.




The 280 Remington is overbore.

The 7 Rem Mag is over bore.