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Posted By: laker 7mm SAUM Montucky - 08/22/15
I had a 7mm saum built on a kimber Montana and finally got a chance to shoot it. Wasn't the best conditions to shoot in ( off the hood of the pickup with the wife and kid jumping around inside the pickup) but the montana shows some serious promise. I did a quick 3 shot group with 160 grain accubond on top of IMR 7828 one shot right after another not waiting for any cool down because the flying piss ants where thick as fleas on a coon dog. Third shot is the one off to the right. I'm sure if I'd waited for barrel to cool they all three would have been together but I'll take it. Can't wait to get on an actual bench and see if it's repeatable and then start whacking some steel. The mashburn may be taking a backseat to the Montucky this fall.
[Linked Image]
Posted By: Hammerdown Re: 7mm SAUM Montucky - 08/22/15
Looks like you have a winner.
Posted By: Dogshooter Re: 7mm SAUM Montucky - 08/22/15
7 SAUMtucky sounds about perfect....
Posted By: laker Re: 7mm SAUM Montucky - 08/22/15
Originally Posted by Dogshooter
7 SAUMtucky sounds about perfect....


I like it. Shoulda had the smith stamp it that
Posted By: Dogshooter Re: 7mm SAUM Montucky - 08/22/15
Oh yeah.... Dibs...
Posted By: Formidilosus Re: 7mm SAUM Montucky - 08/22/15
A 7mm SAUM would be a great setup on a Montana.


There is no reason to let the barrel cool between shots, save throat erosion. What you are seeing is the deviation between shots, nothing else. A properly stress relieved barrel can be shot until it melts and it won't walk.
Posted By: GregW Re: 7mm SAUM Montucky - 08/22/15
How many barrels are properly relieved then?
Posted By: Kaleb Re: 7mm SAUM Montucky - 08/22/15
Very cool build. I've fired my 7 saum 5 times. 2 shots getting a rough zero and fired a 3 shot group. Start load was 58gr 4831sc under 162amax

[Linked Image]

Posted By: Kimber7man Re: 7mm SAUM Montucky - 08/22/15
laker,

Nice build! What brand and contour barrel did you spin on?

Posted By: laker Re: 7mm SAUM Montucky - 08/22/15
Originally Posted by Kimber7man
laker,

Nice build! What brand and contour barrel did you spin on?



Lilja #1 contour 23"
Posted By: laker Re: 7mm SAUM Montucky - 08/22/15
Originally Posted by Kaleb
Very cool build. I've fired my 7 saum 5 times. 2 shots getting a rough zero and fired a 3 shot group. Start load was 58gr 4831sc under 162amax

[Linked Image]



That will do. What's your saum built on
Posted By: Kaleb Re: 7mm SAUM Montucky - 08/22/15
Just a factory rifle. Have been interested in the chambering and this factory 700 came up for sale here.

I remembered you buying that and saying you was rebarreling to 7saum. Been curious to see how it worked out.....seems to be working out very well for you. Was a good idea and I'm sure a great rifle you have.
Posted By: SKane Re: 7mm SAUM Montucky - 08/22/15
Laker,

A 7SAUM in a Montana is pretty cool! And shows gobs of potential there.

My 7SAUM took a liking to R22.
Posted By: ctsmith Re: 7mm SAUM Montucky - 08/22/15
I just got into my first 7 SAUM. Dies and brass are in route. I'm liking the idea of the 120 TTSX at 3400 fps and the Leup 6x42 long range duplex. Sighted in with a 340 MPBR, the first dot is 400 yards, second is 500, and thick portion of reticle is 600; all plus/minus 10 yards. In all reality, I'd probably never take it beyond 400. Should be a killing machine!
Posted By: smokepole Re: 7mm SAUM Montucky - 08/22/15
Laker, I have Kimber WSM sitting in the safe I've been contemplating a rebarrel for. I'm assuming that no modifications were needed, and it feeds well?
Posted By: Backroads Re: 7mm SAUM Montucky - 08/22/15
That Saumtucky is too cool! Looks to be a shooter too.

Very cool build.
Posted By: laker Re: 7mm SAUM Montucky - 08/22/15
Originally Posted by smokepole
Laker, I have Kimber WSM sitting in the safe I've been contemplating a rebarrel for. I'm assuming that no modifications were needed, and it feeds well?


No modification at all. Feeds just fine
Posted By: Canazes9 Re: 7mm SAUM Montucky - 08/22/15
Very nice! I've pondered a 6.5/7 SAUM build on a Montanna for a couple of years now. Your rifle looks like a winner.

David
Posted By: joshf303 Re: 7mm SAUM Montucky - 08/22/15
Looks good Laker. Knew I shoulda tried harder to talk you outta it.

Nevermind that Dogshooter fella.....
Posted By: Formidilosus Re: 7mm SAUM Montucky - 08/22/15
Originally Posted by GregW
How many barrels are properly relieved then?




Lots. What people believe is "heating up" is simply the real group size. Fore one round at a time for 10 rounds letting the barrel cool completely between each shot, or fire 10 back to back. Do each enough times and compare targets and they'll look identical.
Posted By: BurninDupont Re: 7mm SAUM Montucky - 08/22/15
Who smithed it for you? Nice job, good luck with it!
Posted By: laker Re: 7mm SAUM Montucky - 08/23/15
Originally Posted by BurninDupont
Who smithed it for you? Nice job, good luck with it!


C&C gunworks out of Bowman,ND
Posted By: AMRA Re: 7mm SAUM Montucky - 08/23/15
Originally Posted by ctsmith
I just got into my first 7 SAUM. Dies and brass are in route. I'm liking the idea of the 120 TTSX at 3400 fps and the Leup 6x42 long range duplex. Sighted in with a 340 MPBR, the first dot is 400 yards, second is 500, and thick portion of reticle is 600; all plus/minus 10 yards. In all reality, I'd probably never take it beyond 400. Should be a killing machine!


Would this also apply to a 270 WBY MAG 130 GR @ 3400+fps?
Posted By: Kimber7man Re: 7mm SAUM Montucky - 08/27/15
Originally Posted by laker
Originally Posted by Kimber7man
laker,

Nice build! What brand and contour barrel did you spin on?



Lilja #1 contour 23"


Nice. I have a 6.5mm Brux 2 contour that I might just save for a Montana rebarrel as well.
Posted By: laker Re: 7mm SAUM Montucky - 08/28/15
The SAUMtucky continues to impress. Threw a load together with 140 grain accubonds on top of 7828 and they did this off the hood of the pickup.

[Linked Image]


But now the wife has latched on to it so I guess it's me and the mashburn this fall
Posted By: WyoCoyoteHunter Re: 7mm SAUM Montucky - 08/28/15
Looks pretty good.. Mashburn shoot as good???
Posted By: laker Re: 7mm SAUM Montucky - 08/28/15
Originally Posted by WyoCoyoteHunter
Looks pretty good.. Mashburn shoot as good???


Yep the mashburn sings just as good with 150 grain ballistic tip. I'm not that heartbroken about the whole deal
Posted By: DocEd Re: 7mm SAUM Montucky - 08/29/15
Looks like you guys know a really great cartridge when you see it. I have a brand new, custom built Rem. M7 in 7 RSAUM. 7 Lbs. 8 Oz. with scope. If interested please PM or e-mail for pictures. Eharren at comcast dot net
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