Below are attached pictures of a damaged rifle length buffer I purchased as a surplus part in the 90's and it was not new. It is used now or was with a bear creek upper in 7.62x39 fired with russian steel case ammo. Not much more than a 100 rounds through the rifle. Gun I think is over gassed. Was necessary to add some tungsten wts for proper functioning with all magazines and to get 4-5 o'clock ejection. There were spacers, but the buffer was left a little loose inside since that is the way they are normally run.
My solution
Ordered new buffer tube. Will fill with normal soft spacers so tungsten wts do not slam into the ends of the buffer so hard. Gun is semiauto so bolt bounce which is the purpose of sliding wts is not an issue. It is only an issue for full auto weapons.
Before adding the tungsten wt with some magazines there were jams with one round in the chamber and a second stove pipe round still in the magazine. Not sure what was going on, but it was an interesting double feed for sure. The added mass stopped that and so I assumed that previously the bolt was going too fast.
Anyone with some wisdom or experiences to add.
Hopefully the picture come out alright
My solution
Ordered new buffer tube. Will fill with normal soft spacers so tungsten wts do not slam into the ends of the buffer so hard. Gun is semiauto so bolt bounce which is the purpose of sliding wts is not an issue. It is only an issue for full auto weapons.
Before adding the tungsten wt with some magazines there were jams with one round in the chamber and a second stove pipe round still in the magazine. Not sure what was going on, but it was an interesting double feed for sure. The added mass stopped that and so I assumed that previously the bolt was going too fast.
Anyone with some wisdom or experiences to add.
Hopefully the picture come out alright