Very true. 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. The older semiautomatics have weaker springs.

Case volume capacity of the 35 Rem is probably 5% less than a 358 win, so properly loaded similar to a 45-70 in stronger action the 35 Rem is a great round. Very efficient with good power