I have for sale my personal 7-300wsm. build components: Defiance action A3-5 laminate hydro dipped multi-cam, integrated cheeck piece and bubble level, pillar bedded 5R Benchmark Barrel, 26", jackass contour, 1:9 twist, fluted, metal coated KG Kote (bake on) titanium gray SSG "V" port vaporizer brake kwik Klip bottom metal Seekins 20MOA base keyed to Seekins lug SSG Tactical Traction bolt knob Shillen trigger This gun has 140 rounds through it and is shooting exceptionally well. The 7-300 uses the same headspace as the 300WSM and 270WSM which is shorter than the standard 7WSM. The benefits are a longer neck to suport the longer heavier bullets and availability of good quality Norma brass, which the plain 7wsm does not have. I make my cases out of 270WSM Norma. It doesn't get any easier, you just take the 270WSM case and run it through a Redding type S full length sizing die for 270WSM with a 7mm expander and a .312 neck bushing. then prime the case' fill it with the prefered powder for the bullet weight ( For a 180 grain berger I prefer H1000) then seat the bullet with 7mmWSM seating die.(which I typically slightly alter the body length) Bare rifle weight is 10lb 4oz. (bi-pod, scope, sling and rings not included) Price $3000 + shipping in the lower 48.