Re: 338 Lapua Build thoughs
Yes first post on this forum woohoo.
I Live in NZ, maybe not for much longer though. (EU here I come)
In my opinion, if your going to buy factory ammunition, build a straight 338 lapua, but if your going to all this effort, Id definitely go for an improved case.
Im doing the same, but will most likely build on a 700 action.
The calibers I'm considering are 338 Thor (338-416 improved) 338 LM AI, 7mm-338 LM improved, or any similar case, maybe the 7mm norma improved.
The gunsmith I want to build this for me, says that similar rifles are weighing around 10lb's scoped with a nightforce. I will run Schmidt or IOR, but still will only be 6 oz more than that. Add 2lbs for an aftermarket action.
I carry 12.5 lb's round the hills in NZ now, and its fine. The heaviest I'd want would be 14lbs, but it definitely weighs you down when your in a stalk. It happens more often than youd think, even when hunting chamois and tahr.
The bigger the caliber in a certain case size, the less velocity you loose per barrel length. So the 338's are very efficient, even in 26 inch or less.
With the 338 thor, the 300 smk's are said to be driven at 3050 in a 28 inch bbl. That is 200 fps less than the cheytac version - yes, its efficient. Im thinking going to 26 inch, but up a contour. 3000 fps with 300 smk.
Hope this helps you take even longer to make your decision hahaha!