I am 60 also, and built a rifle off the Big Horn short Action. I shoot several calibers with it. my favorite by far is the 18 inch 6.5 Saum barrel to hunt with, and shoot to 1000 yds. I push a 135 Berger classic with 53 grains of H 4350 at 2990-3015 fps. It is just plain fun to shoot, and is a...
center point the shoulder with the ttxs and it will drop them dead, and with not near the meat damage as the Berger or a soft point. my favorite bullet is the Gmx, they hold together good, and shoot well. I do shoot a 135 Berger classic in my 6.5 Saum.
sell your rem 700 actions, buy the Origin action, and buy shouldered barrels from Preferred barrels. I shoot from 223 rem to 6.5 Saum out of the same stock. You will love it.
I just came back from the range. I was shooting my 308 with a 16.5 inch carbon fiber barrel, it ran a 150 gmx handload 2750, and the 165 gmx handload 2600. this is a mild load.
look at the EC tuner by Eric Cortina, works great have not had a group move period. My 6.5 saum shoots very good but I was getting about .440 out of it. I tried seating depth, and about everything I could. The tuner with the same load work up shoots .250 or less.
I have a Iota Krux stock- Gray/ Orange desert camo
Remington 700 long action or clones, has been bedded, and opened up to received sendero barrels.
Bought for a build but went with a short action Saum.
asking $400 shipped/insured.