Originally Posted by Long Range
Im in the works of starting a 6.5 SAUM and would like to know if and body has any experience with one or knows somebody that may. I have a few reamer prints and would like to know just how long I should get the freebore. Will be shooting mostly 140 grain.
You coming off the 7mm RSAUM or the .300 RSAUM... I've shot with a few guys that built them.. they loved the cartridge.. most came off the 7mm RSAUM as I recall. At the time I was shooting a .300 RSAUM for a 1k rifle. You might want to use a long action.. throating it a little long will give you more powder, the longer action letting seat the bullet out, little better jump from the neck.
Now day's I think I'd do the aforementioned only just use the 6.5 Rem Mag.. pretty must the same thing and a great cartridge I might add. Heck if I was using a 6.5mm to shoot 1k with today I'd try the 6.5 Rem Mag for sure. I had an early 6.5 Rem Mag when Remington came out with it in M700 SA BDL... great hunting rifle, killed game like a gangster... but it would have been better in the long action... 140gr plus bullets were just too long for that magazine.