I just finished my 6.5 Grendel build. It has a 20 inch barrel and an adjustable gas block. The bolt carrier is a low mass type. I took a standard buffer and removed the weights and replaced them with wood. Yes, I know that's weird. Even though it's weird, other people have this issue with normal weight buffers too.
When I went to fire the gun, I turned the gas way down. Then I turned it up and up until the rifle would cycle properly. Once it was cycling properly, it was denting the brass. If I turn it one click less, the brass doesn't fully eject. I was thinking maybe adding one or two of the weights back to the buffer might allow me to have more fine grained control over the cycling of the rifle, so I might find a sweet spot where it still cycles properly, but it also doesn't dent the brass. I don't have my hopes up though since this does happen to people who have normal weight buffers as well. Some people put felt or padding on the brass deflector (the deflector is what causes the dent)... I'd rather solve it another way if I can. Also some people say to just live with it, because the brass will be reshaped when reloading. But I wonder: will this reduce the amount of times the brass can be reloaded?
Anyone got any ideas?
When I went to fire the gun, I turned the gas way down. Then I turned it up and up until the rifle would cycle properly. Once it was cycling properly, it was denting the brass. If I turn it one click less, the brass doesn't fully eject. I was thinking maybe adding one or two of the weights back to the buffer might allow me to have more fine grained control over the cycling of the rifle, so I might find a sweet spot where it still cycles properly, but it also doesn't dent the brass. I don't have my hopes up though since this does happen to people who have normal weight buffers as well. Some people put felt or padding on the brass deflector (the deflector is what causes the dent)... I'd rather solve it another way if I can. Also some people say to just live with it, because the brass will be reshaped when reloading. But I wonder: will this reduce the amount of times the brass can be reloaded?
Anyone got any ideas?
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