Riflecrank
AH enthusiast
One knowledgeable fellow thinks it is an old High Tech stock from circa 2006, after Bansner sold the name to another maker.
I called Bansner, he never made an RSM stock but subsequent maker might have ?
Circa 2006 was first year the .458 Lott Ruger M77 RSM was made, as was this rifle,
a Gen 3 with 23" barrel length and 0.750" muzzle diameter.
I collected this rifle from a local Cabela's Gun Library and they reveal nothing about the former owner ID for me to contact and quiz.
The stock is pretty light, 1 # 15.8 oz. even with the RSM steel recoil cantilever plate permanently embedded in it.
Assembled, unloaded rifle as above weighs 8 # 14.2 oz.
Excuse me for owning this .458 Lott, but I am sort of a redneck Buckstix,
with beer tastes on a beer budget.