Ok gents, here's the scoop. My brother and I are wanting to build some light weight mountain rifles. I have a 10.5 lb STW for when the terriain is more favorable. I hunt in some nasty steep terrain. I cannot afford titanium actions, so don't go there. I've got a tikka in 300 win mag that I want to re-barrel with a proof sendero light, and possible do some work on the bolt to lighten it up. I'm planning on using a MPI lightweight stock (or similar), and optics no heavier than 20 oz. The build will mostly be for elk and mule deer, sheep if I draw before I die. My questions is, what caliber should I go with? And how long of a barrel? I'm thinking 22"?
Some of the calibers I've been thinking of are:
270 WSM 1:8 for the 170 Berger, 165 matrix, or 150 LRAB (I like that it can go heavy, but no crazy recoil)
7 SAUM/7 WSM 1:8/9 for any 160-180 gn bullets, there are lots to choose from. (this is harder to buy in stores if I'm in a pinch and need ammo.)
300 WSM 1:10 for anything in the 180-210 gn range. (My concern with the 30 cal is the recoil)
6.5 cals seem a little small for elk imho, especially when shooting out to 6-700 yds.
I do plan to put a titanium break on to reduce recoil. I'm pretty set on these few choices, just want some opinions. I'm proficient at reloading so that's what I plan on doing. Also don't try to convince me of SS Mag, they are interesting, but I want something with no fire forming.
Thanks in advance