Bruce Macarther (CL3) told me, the stiffer spring in a MG will make it return to battery faster, making it run faster. Nothing on reducing recoil.
On my SW76, the new Wolff spring made it run smoother. Has low recoil anyway, from being a 9mm.
Dave Evan (member here) has a new M2 Carbine and I will see him at the Tacom shoot on the 23rd. I will see if he changed the recoil spring and noticed any difference.
My favorite belt gun is a M60, I carried it in the Marines, but I only own a 1919- my pockets are not that deep. As for SMG, I like my buddies MP5. My I have a BRP coming in (hopefully ATF will not take a year this time)
Thanks, I love the knowledge people share on this forum.
Thanks Moose