Originally Posted by AJ Peacock
I've been shooting/reloading for the 7mm Rem Mag for 30+ years.
The 2 most accurate bullets I've found for both of my Rem 700's are the 162gr A-Max and the 160gr Nosler Accubond. I've shot many sub .3moa groups with them both (as small as .15moa). I've tried many different powder and primer combinations. The best powder I've found so far is RL-22.
From a primer perspective, I have always found better consistency/accuracy with standard large rifle primers instead of the oft recommended Large Rifle Magnum primers.
I'd start with a jump of between .015" and .020". I drive the above bullets at just over 3000fps.
I use Norma brass only for the 7mmRM. I also neck size only when possible and only resize about 3/4's of the neck to help keep everything centered.
I also reload it as if it had no belt (allow it to headspace off the shoulder), thus only the neck size, until I have to push the shoulder back around .001"
Thats very interesting information. I found my best results though kissing the lands but I'll try the current .55" load at .015 .0175 and .020" off.
I use 215m primers and never thought to try 210 match primers. I actually have a few thousand on hand.
I have used fireformed federal premium brass in all my testing. Would you suggest I try virgin norma brass?
As far as powder my best results are with IMR 4831 though my interarms hart barrel 7mm really likes H4831sc. I've tried 4350 WMR and both H and IMR 4831.
I do FL size but am seriously considering a neck sizer for brass life and proposed accuracy.
I weight sort bullets, tumble my brass, and weigh powder charges to try to eliminate unnecessary variable.
To answer Blipelt- Yes the stock is pillared. If I remember correctly this was a 20$ option from stockystocks.com
Thanks for the input! I'll update with any progress.