Home Forums Hunting & Shooting Elk Hunting 7mm Mashburn 175 Bitterroot recovered

Salonek - The best alternative is the 175 Partition. I'd love to show you a recovered one but again, this years elk didn't catch one.

Shot was less than 20 yards; the bullet shattered the massive bone below the shoulder blade (as in a 3" section of bone was missing), penetrated the chest cavity, punched the heart, exited the far side chest cavity, punched through the muscled off shoulder and then exited. The lungs and chest were peppered with holes from bone fragments...pretty messy.

And unlike what others have posted about heart shots and/or breaking them down will DRT, this one traveled about 90 yards from the shot with a destroyed heart/lungs and a front leg that looked to have a universal joint installed.

7 Wby Mag, with a 175 Partition @ 3100 fps......

Hard to pass on the 175 Partition..

Yes it is! After a few years of trying some of the new super bullets, I've circled my way back to partitions and fixed power Leopold's....

Dang! Now I sound like an eastern hunter who posts on here a lot

CreekWarrior:

That would be a 175 peeking out of that Mashburn case....

Tease.

Oh yeah, that is sweet!

Trust me, it's been hard to resist doing a Mashburn. It has all the elements of "old school western hunting" in it - Hagel, 300 Winny cases, Page, Mashburn, ultra velocity and laser trajectories!

I have 3 dummy Mashburn cases made up holding various bullets and they tempt me everyday. I shall remain strong and resist!

Thanks to you, one day I'm sure I will fall on that sword and do one....

I hear you. I've been using RWS 300 win to form 7wby brass. I cant help but think why the hell didnt I just do a Mashburn if i'm going to form 300 win brass.

I do like the 7wby tho, its a performer.

Creek Warrior: Honest I just wanted to do one for myself....just to satisfy my curiosity. It was Dober on here who pushed me over the edge. A few folks have done them and some have been happy with them and some have not.

It does not do a whole lot that other 7mm magnums do, like the Weatherby and the Dakota but it does things pretty well;and like Rosco notes you can source anyone's 300 Win Mag brass to make it.

But it was among the first..and good guys used it!

hummm, so it's a 300 WM wannnnabe


Will it be a 300 WM WHEN it grows up ?


Jerry






















seriously, it does look interesting to me.

I'm looking for the "right" rifle to turn into a Mashburn.


I blame BobinNH,he's an instigator!

I like the look of that 175 Woodleigh weldcore. Decent BC too for what it is. Might have to try a couple of those this spring to see how they shoot. Thanks for bringing them up.

Jerry: The Mashburn was originally formed from 300 H&H brass shortened, necked down and blown out...back before there was a 300 Win Mag.

Bob Hagel probably first used the 300 Win Mag case to form Mashburn when it came out in 1963.

Little more on my interest in the subject, if I may?


As mentioned I am all done with Accubonds.
This is the hide evidence of what I believe the lack of soft tissue expansion. 250 - 275 yard'ish shot, perfect broken rib entrance & diagonal lung-shot through a good sized Muley buck.
The skin is bunched up to get both holes in one photo.
The larger 5/16" stick was really to big for the exit hole (some but little expansion).
DRT buck, no questioning I would like to see more exit damage.

Exciting year!
I have a friend that knows someone that has a friend that did not recover a nice bull shot with this same lot of bullets. Shot at more distance then the buck, but still within a respectable distance. Hard ground tracked for a fair distance without a significant blood trail, sadly, lost bull.

Side note: Off-season plinking/training, Accubonds seemed hard to me, this is my first successful season since a switch from BTs.
Nolser is now offering an extended range Accubond, nearly admitting there may be an expansion issue with the regular issue.



http://s94.photobucket.com/user/crowvalleyforge/media/20161103_145748.jpg.html?evt=email_share_media

No, he's an enabler.


Bob, you know I was joking, If I didn't like my 300 WM, I'd be serious about a Mashburn.

Jerry

Whichever he is,Bob needs to cool it.

But,then again,I do have two boxes of 175 gr NP's (one box semi-spitzer and one box spitzer) just waiting to be used on a New Mexico deer or elk.

I have no interest in the "big" 7's and have two 7mm Mauser's,so a Mashburn is right in the middle.

Took this spike at about 75-100 yards in Oregon with another 175 BBC from my Mashburn. Angled from the 5-6th rib back and center punched the offside leg. Little bull ran about 40-50 yards and died.

Insides were blended up pretty serious with about a 1" hole in the hide and 2.5-3" hole in the meat. I was pretty happy with it.

Haven't been able to stretch it out as but elk were taken under 150 yards but it wrecks a lot of stuff, in a good way..

Bob Hagel and all you others really did me well. Love the cartridge, easy to load for and doesn't pound me too much at all. With good bullets it is becoming a favorite.

I passed my current Mashburn to my elk hunting partner after I took the spike.. time to put together another one I guess

Imagine if Roy Weatherby would have had Bitterroots to work with?

True! The faster you push them the better they work.

Lots of Steiger's clients used Bitterroots in 300 and 375 Weatherby cases;other Weatherby cases as well.