Home Forums Hunting & Shooting Custom Rifles & Wildcats Here's my 7mm Mashburn, show us yours!

I apologize but I don't know what the rifle weighs bare. It is right at 10lbs even though with the 4.5-18 Bushnell on it though. It is a Magnum fill Legend as well, so it is quite alot heavier than I would want but it wasn't meant for me.

So ~ 8.3#.
That mag fill legend will be around 40 oz, so one could get that lighter.
Appreciate the info.

Joel you made the right choice doing nitride on that second one; I packaged up that Black-T’d Mexibob in the mail to Dennis Olson where it’ll be fitted for an English walnut stock.

I noticed, after maybe 50 rounds max, that the Black-T chipped around the bore at the muzzle.

Insane.

Nitride for my next custom for sure.

I like "Old Ugly" rifles that just shoot like a house a fire. 700 BDL walnut stocks just beat to hell, pillar bedded, free floated, Brux, Bartline, Lilja Krieger, barrel, Wyattl's mag box, shooting ragged hole groups!

No body wants to see guns like this....just shoot'en demonstrations!

180g eldm at 3100+ out of a 28" barrel abounds, win brass
175g Nosler lrab sucks hind tit on bc but jeez, but it hammers the dog schitt out of hogs at 3100...

defer to the std 280 with Lapua 30/06 formed brass at 2800+ with IMR 7828 24". Hard to be humble when schitt just works.

I built a Mashburn on a Browning long action, cut the chamber with Bob’s reamer that he let me borrow, dropped it into a McMillan A3-5 and mounted a Leupold Mark 4 M5 A2.

Dealing with the brass preparation, donuts, neck turning is the biggest problem. The gun shoots very well with my nine twist Bartlein barrel shooting the 195 grain Berger.

This combo accounted for the longest range kill so far.

If I had it to do over again, I would just go with another big seven of equal case capacity or greater with available brass. A buddy of mine shoots a 7 mm Practical which has a little more capacity than the Mashburn because the neck and shoulder junction doesn’t move too much and making the brass doesn’t create the problems like the Mashburn.

I’d also go 8 twist and shoot the 180 ELD-M

I remember that blaster. If I wasn’t so heavily invested in 7 Mashburn dies your advice for the 7-300 / 7 Practical is golden.

I have shot several thousand Mashburn reloads made from from .300 Win brass and have yet to see a donut. I have had problems with neck cracking from not annealing my brass often/soon enough but that is the only problem. I started with 1000 Federal match brass and about 300 into the stash.

It is my understanding if you size down you don't get donuts.

Today, 7mm-300 PRC !!!

I use 300 Win mag brass to make my Mashburn cases. Donuts come with every brand I’ve tried. Gauge pins tell me when they arrive, usually after 1st or 2nd loading. Ream them out once and they don’t return. It’s a great round but if I was starting over I’d do the 7 Practical to eliminate some steps in case forming.

Yes, or one of those...

When I decided to put a 7mm barrel on one model 70, I thought about the Mashburn, because I could borrow a reamer, I wanted to do a Weatherby because I have a good reamer for that. In the end, went with the 7RM because it's just too easy. GD