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Rifles, Reloading, Optics, Equipment
Gunsmithing
Lug setback? What am I missing?
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<blockquote data-quote="Johnny Jr." data-source="post: 1821428" data-attributes="member: 112651"><p>I always assumed the forces on the boltface (and lug surfaces) was the ft lbs of energy derived from the bullet weight and it's speed out the barrel. I also presume expansion of the case and it's grip on the chamber wall would soak up some (maybe a lot?) of the energy reaching the bolt face (and lugs). </p><p>I know a 460 Weatherby action can handle 8000 ft lbs of energy and a Remington 700 338 LM can take 5200 ft lbs (Hornady.com). Does anyone know the max limit of the 700 assuming established safe loads? I'm thinking a 460 WM in a 700 is not a smart move.</p><p> If bolt face diameter and PSI determine the forces on the lugs and receiver then either cartridge should be fine</p></blockquote><p></p>
[QUOTE="Johnny Jr., post: 1821428, member: 112651"] I always assumed the forces on the boltface (and lug surfaces) was the ft lbs of energy derived from the bullet weight and it’s speed out the barrel. I also presume expansion of the case and it’s grip on the chamber wall would soak up some (maybe a lot?) of the energy reaching the bolt face (and lugs). I know a 460 Weatherby action can handle 8000 ft lbs of energy and a Remington 700 338 LM can take 5200 ft lbs (Hornady.com). Does anyone know the max limit of the 700 assuming established safe loads? I’m thinking a 460 WM in a 700 is not a smart move. If bolt face diameter and PSI determine the forces on the lugs and receiver then either cartridge should be fine [/QUOTE]
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Lug setback? What am I missing?
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