Just put a new wilson combat 22" supersniper barrel in my rifle. I had heard they are hammers. This one is not a hammer. Also has anyone seen marks like this on brass before? I have not.....
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Someone come correct me if I'm wrong, but I had a problem with my brass like that, and was told to cut one coil at a time off the ejector spring, I ending up cutting 3 off and the problem went away. I believe the neck is hitting the barrel extension. Cutting a coil or 4 from the ejector spring will relieve the problem...at least it did for me.
Okay, polish the feed ramps first and if that doesn't work, then remove a coil at a time from the spring. I've examined a few ejector springs from various BCGs, albeit all small frame ARs, but they varied in length. Trimming a few coils isn't going to hurt anything. Think the problem is too much ejection force.IMO it is better to remove the sharp edges from the barrel extension than to reduce the ejection force.
Not the feed ramps, the locking lug sharp edges.Okay, polish the feed ramps first and if that doesn't work, then remove a coil at a time from the spring. I've examined a few ejector springs from various BCGs, albeit all small frame ARs, but they varied in length. Trimming a few coils isn't going to hurt anything. Think the problem is too much ejection force.
Those marks are from a tight chamber huh? InterestingWC says the brass is normal:
This is normal for our tight-chambered barrels. Resizing and tumbling of the brass fixes them right up.
It isn't the feed ramps. If you chamber a round then pull back on the charge handle slowly you can see the case rub across the extension lugs at 2:00 those are the ones that should be rounded off.Would agree that polishing feedramps in barrel extension should be done regardless. Ejector springs are cheap-have a couple on hand and reduce a coil at a time and see if this resolves your issue. Have done same on a handful of Grendels with excellent results.
That said, have two Wilson Combat Grendel barrels and after 80-100 rounds, they settle in and will shoot. Handloads or factory?