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Rifles, Reloading, Optics, Equipment
Gunsmithing
Recoil lug thickness studies
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<blockquote data-quote="Hugnot" data-source="post: 2812843" data-attributes="member: 115658"><p>Photos of a .375-.338 Ruger M77 MKII. Rifle was bedded with .10-inch thickness of steel & epoxy mix behind recoil lug. The recoil lug is integral with receiver being investment cast stainless steel. I placed a 1/8 inch steel machine screw behind recoil lug recess about .30 inch behind recoil lug. I dipped the machine screw in epoxy & turned in then filed & sanded it flush with stock. After all that I noticed stock deformation behind tang - the tang was being pushed into the stock by recoil despite steel epoxy & cross bolt. I then relieved about .020 space behind tang.</p><p></p><p>[ATTACH]460741[/ATTACH][ATTACH]460742[/ATTACH]</p><p></p><p>Load is somewhat under 70 grains of 4350 type powder & a 300 grain bullet. I like to shoot at railroad tie pieces with the 300 grain RN PPU bullet.</p><p></p><p>No hydraulic & spring force absorption but movement within stock. I thought stuff did not move.</p></blockquote><p></p>
[QUOTE="Hugnot, post: 2812843, member: 115658"] Photos of a .375-.338 Ruger M77 MKII. Rifle was bedded with .10-inch thickness of steel & epoxy mix behind recoil lug. The recoil lug is integral with receiver being investment cast stainless steel. I placed a 1/8 inch steel machine screw behind recoil lug recess about .30 inch behind recoil lug. I dipped the machine screw in epoxy & turned in then filed & sanded it flush with stock. After all that I noticed stock deformation behind tang - the tang was being pushed into the stock by recoil despite steel epoxy & cross bolt. I then relieved about .020 space behind tang. [ATTACH alt="IMG_1935.JPG"]460741[/ATTACH][ATTACH alt="IMG_1934.JPG"]460742[/ATTACH] Load is somewhat under 70 grains of 4350 type powder & a 300 grain bullet. I like to shoot at railroad tie pieces with the 300 grain RN PPU bullet. No hydraulic & spring force absorption but movement within stock. I thought stuff did not move. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Recoil lug thickness studies
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