It's still the same as Warren Pages Mashburn. In today's time more people are just useing 300 win mag brass and bumping the shoulder back and necking down to .284. It's as simple as running your 300 win mag brass thru your full length 7mm Mashburn die until you get a light crush fit when you close the bolt. Then load it up with around 65gr. Imr4350 and a cheap 140gr. bullet to fire form.
I'm also working with a old pre prefix Rem 700 in 7mm Rem mag. I wasn't happy with the factory configuration so I tore into it.
New stock is a Mcmillian Classic with the molded in Rhino camo. The barrel is coming from Brux. SS 1 in 9 twist #4 contour fluted, finished at 25.5". Trigger will be a Jewell set at 1#.
I'm still up in the air on the bottom metal. The stock is cut for Remington's standard BDL floor plate.
I can run up to 180gr with that twist but I'll most likely stick to the Hornady 162gr. AMax at around 3200 fps. It should be a great long range hammer.
