Beyond securing the action, the purpose of keeping torque within the limits is to avoid compressing a plastic or wood stock. Actions that sit on an aluminum bedding block that bottoms on the trigger plate or on pillars, are not suseptible to compression so can be snuggged tighter. I suspect that most manufacturer recommendations are based on ther production wood/plastic offerings. I generally stick with 40 inch pounds on the compressible stocks and 60 inch pounds if fitted with aluminum bedding block/pillars.
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Old Guys Rule
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