Wildcats based off 7mm mag action.

[hogslayer]

I am having a 28 Nosler built my Michael at Hells canyon armory. I have a sako 7mm mag that I am wanting to re-barrel in something else.  Leaning towards a 6.5 SAUM, or 6.5 wsm.  I would like to use my same action and bolt.  Curious what other people have done with building off a magnum action?

[Dan-o]

I imagine plenty of people have already taken a 7MM Rem Mag down to 6.5 MM, but that would be pretty cool......

[hogslayer]

Ya I looked into that thinking the same thing.  Turns out the 264 win mag is .5 grains less in case capacity. 

[rbros]

stick with a long action magnum case.  It will feed a little better than the short cases in a long action. 

[b23]

6.5 Blaser Magnum, aka necked down 7mm Blaser Magnum, I know, right now you're probably saying a 6.5 Blaser what?! 

It has the same case capacity as standard 7mm Rem Mag (82.5gr H2O) and slightly more than the SAUM and WSM.  The case is longer than the WSM but not quite as long as a 7 Rem Mag and not as fat as the WSM but fatter than the Rem Mag.  Norma makes the 7mm Blaser Mag brass and it's easily available from online sources just google 7mm Blaser Magnum brass for sale.

I just had a 7mm Blaser Mag built and used a Remington LSS 300 win mag as the donor gun and had a HS Prec. detachable mag system installed, it feeds very well and has plenty of length for the 180 Bergers I'm shooting.

[Bill W]

I imagine plenty of people have already taken a 7MM Rem Mag down to 6.5 MM, but that would be pretty cool......

Winchester did that back in 1959.  .264 Win Mag.

[b23]

I imagine plenty of people have already taken a 7MM Rem Mag down to 6.5 MM, but that would be pretty cool......

Winchester did that back in 1959.  .264 Win Mag.

To bad they didn't remove the belt from the case design back then, too.

[theleo]

I might be off base but You might be able to do a 35 STA.

[BULLBLASTER]

I might be off base but You might be able to do a 35 STA.

[jdb]

Im not sure but I think the 35 sta requires a true magnum length action while the 7mm is actually a standard length action

[hogslayer]

stick with a long action magnum case.  It will feed a little better than the short cases in a long action.

I have thought about that to.  Only issue I see is that right now at 3.336 coal I am at max magazine and already filed it down big time.  I was thinking of going to a 30 cal mag, but with high bc bullets it wouldn't fit.  I already had to find the second sweet spot for the bergers at .80 thou off the lands to get them to fit.  Otherwise it is single shot. 

[12Gauge]

I imagine plenty of people have already taken a 7MM Rem Mag down to 6.5 MM, but that would be pretty cool......

Winchester did that back in 1959.  .264 Win Mag.

And it became a legend as a barrel burner.  The velocity was to fast at around 3400 FPS, barrels did not last long and they were shot out.   

[yorketransport]

I like the 6.5 Blaser idea! How much experience do you have with wildcats? If you're not afraid of case forming you could do a 6.5x375 Ruger with the shoulder pushed back about .200". Pushing the shoulder back would give you a little more room for the long bullets as well as give you a longer neck.

If it were me, I'd go with a larger bore. The 6.5 and 7mm are so close that it almost seems like a waste. A 358/375 Ruger would fit perfect in there and will almost match the performance of the 358 STA.  I'm a huge fan of the 338/375 Ruger and I'be had 5 of them over the years. Either the 338 or 358 would make a great 20-22" barreled hunting rifle.

[Dan-o]

How about a 243/7MM Rem Mag?
(Your new ultimate antelope rifle)

Or a 22/7MM Rem Mag
(Your new ultimate predator 3,800 fps round)   

[hogslayer]

I have never seen the alaska times round.  That thing is a pig!  I am trying to stay away from having to neck turn and fire form and all that.  I would like to just 1 pass resize the brass if I can.  That's the only reason I was thinking going from .284 to .264.  We shall see.