6.5 saum

[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.

Thanks.

[436]

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.

Thanks.

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.
Good luck.
436

[Long Range]

Probably off the 300 SAUM building it on a short action not worried about mag length as I will be single feeding them. I like the Rem 6.5 mag but the 6.5 SAUM just looks like it will be just right in a shorter package.

[436]

Originally Posted by Long Range

Probably off the 300 SAUM building it on a short action not worried about mag length as I will be single feeding them. I like the Rem 6.5 mag but the 6.5 SAUM just looks like it will be just right in a shorter package.

Not sure what the 6.5 RSAUM will give over the 6.5 Rem Mag.. looks like the 6.5 Rem Mag comes in about 68gr H2o I'd say the 7 RSAUM and the .300 RSAUM should be coming in at around 66gr H2o or better... that's just kinda a guess at this point.. I was shooting a 190gr in the .300 RSAUM burning 63.5grs to 64.0grs of powder in my rifle. Shooting single shot.. no problem with a SA.
I think I'd real consider the 7 RSAUM as a case for necking down to 6.5 over the .30 cal.
The 6.5 Rem Mag fits very nicely into a SA again if your shooting one at a time, no problem on the longer bullets.
Cheer's
436

[Long Range]

Originally Posted by 436

Not sure what the 6.5 RSAUM will give over the 6.5 Rem Mag.. looks like the 6.5 Rem Mag comes in about 68gr H2o I'd say the 7 RSAUM and the .300 RSAUM should be coming in at around 66gr H2o or better... that's just kinda a guess at this point.. I was shooting a 190gr in the .300 RSAUM burning 63.5grs to 64.0grs of powder in my rifle. Shooting single shot.. no problem with a SA.
I think I'd real consider the 7 RSAUM as a case for necking down to 6.5 over the .30 cal.
The 6.5 Rem Mag fits very nicely into a SA again if your shooting one at a time, no problem on the longer bullets.
Cheer's
436

I belive the case capicity on the SAUM is around 72 h2o before necked down so yes the case capicity is about equal of the 6.5 Rem mag. I would like to base it off the 7 SAUM but brass availability is a problem I have found a few places with 300 SAUM. I belive it could be sized down in a couple steps no problem this is why I chose the 300 over the 7 but yes the 7 would be a lot easier.

[436]

I understand the brass problem. However it seemed like a lot of extra work just to get to a 6.5 Rem Mag performance'.., then.... that's why we play this game of guns and things that go pop!
Take care, have fun.
436

[Long Range]

I have a reamer print in hand and it has a 203 lead and 187 throat does this sound a out right for a 6.5 shooting the 140 class bullets.