Friend of mine had both a Marlin 336 .35 Remington, and a Remington 660(?) in .350 Rem. Mag.
The Rem. Mag. was a FEROCIOUS little SOB!
He started loading the .350 down to midway between .35 and .350. It tamed the thing right down, gave much better accuracy, and resulted in an exceptional deer and bear gun.
If I needed a short rifle/cartridge combo for bear protection, the .350 would be very high up on the list.
But, back to the Marlin .35 Rem. Great gun, very good cartridge for shooting deer out to about 150 yards, and bear up to about 125. Much past that and the trajectory becomes really loopy.
I'll never understand why Savage never chambered their 99 in .35 Remington. It would have been a beautiful match back in the 1930s.
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Beware the man with the S&W .357 Mag.
Chances are he knows how to use it.