...The 35 Remington isn't held to 33.5K CUP because of the Marlin 336. A weaker action is the older Remington model 8 semiautomatic which is a blowback design....
A minor point, but in terms of accurate reporting the M8 was
not a blowback design. It was a recoil-operated action with a rotating bolt head like more modern actions and could handle much more powerful cartridges than any blowback action. It was definitely not as strong as more modern gas operated actions.
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