If your gun isnt showing signs of battering, which should be pretty obvious if it is, why are you using the buffer?
And if it is showing signs of battering, why is that happening? It shouldnt be and something else needs to be addressed. Unless of course, it was designed to be used with a buffer, which other than a few guns that Ive seen/owned that were, Id say 99.9% of guns out there, were not designed to need them.
I bought two AK's that came with aftermarket (there are no "factory") buffers installed by the previous owners. Both guns were unreliable and had regular malfunctions (which is why I think I got them so cheap) with the buffers installed, and most of those were feeding and short stroking related. The buffer wasnt allowing the bolt carrier its full range of motion causing the problems.
When the buffers were removed, the guns immediately were working as they should, and there was never any sign that the carrier was impacting the rear of the receiver, or anything else was being battered. Nor have I ever seen that on any of the other AK's that Ive owned.
One other thing I noticed with the AK's that had buffers in them, was a difference in the recoil impulse. In the guns without them, it felt as if the gun had less felt recoil and the guns ran/cycled more smoothly.
With the buffers installed, and with the carrier impacting the buffer, and transferring that impact into the gun and the impulse (as opposed to the spring absorbing it), there was a bit more of a slap to the recoil and it was noticeable. Which was kind of funny, since some of the buffer makers were claiming the buffer did just the opposite and made felt recoil softer.
I also bought a 1911 that came with a rubber buffer installed, and it too was causing function problems, which also immediately went away when the buffer was removed.
As far as I know, a properly built 1911 was not designed to use one. Is the reason they are being used in some guns, because the shooter had modified the gun for other reasons (lighter springs comes to mind) and because of that, they are now having battering problems where you normally wouldnt?