John,
The 300 mag in my somewhat humble opinion is probably responsible for more flinching problems then any cartridge in history.
When a guy shoots it good, it's a devastating beast of a cartridge.
The recoil of the .300Win is very sharp, but its a killing machine.
I went ahead and fitted a small suppressor on the .300Win
The recoil is now equivalent to a .308Win and it absolutely destroys any life on the other side. Best piece of weaponry I have to offer as a rental.
Have a look at how small the can is I had fitted on the front. Weight of the suppressor is 9oz.