That's a great gun, my dad had a 7mm rem mag with a Monte Carlo stock ( think it was the shape? ) went with him a few times to the old range on the Barnet, wish I had gotten into more as a youngster.
I just reloaded my first 20 rounds of 7mm REM MAG. I did a variety or bullets and used a balance beam and digital scale, I shall run them through my chrony and see how they do there and on target.
My 7mm MAG is an old Parker Hale with a slow twist, so it prefers lighter bullets versus the nowadays "the heavier the better" the young guys at the gun stores tell ya. Splitting between balance beam and digital scale, I loaded 67g of H1000 and did the following bullet types: ( 8 ) 154g Hornady Interlock SP, (6) 150g Nosler Ballistic Tip, and (6) 139g Hornady SST.
Been nervous to reload the big magnum cartridges but I think I have done enough mistakes with my handgun rounds that I took my time, rechecked everything twice, and I'm confident these should work well. Looking forward to some time at the range to test them!