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I'm running into an interesting phenomenon that I'm not finding much info on the web and wondering if others have found the same issue and what they've done.
I'm reloading 7.62x51 for a semiauto rifle (scar 17s) and I'm seeing bullet set forward.
After chambering a round loaded with a 168gr Sierra Matchking, the round comes out of the chamber about .020" longer than it went in. At first this confused me, then I figured the sudden stop once in the chamber is acting like a bullet puller.
I measured a surplus L2A2 round after chambering and noted that bullet grew as well after chambering, tho not as much. It grew about .009". Lighter weight and the bullet has a cannelure where the Matchking doesn't.
Has anyone noted this before and what did you do about it? I can't imagine this helps accuracy.
I'm reloading 7.62x51 for a semiauto rifle (scar 17s) and I'm seeing bullet set forward.
After chambering a round loaded with a 168gr Sierra Matchking, the round comes out of the chamber about .020" longer than it went in. At first this confused me, then I figured the sudden stop once in the chamber is acting like a bullet puller.
I measured a surplus L2A2 round after chambering and noted that bullet grew as well after chambering, tho not as much. It grew about .009". Lighter weight and the bullet has a cannelure where the Matchking doesn't.
Has anyone noted this before and what did you do about it? I can't imagine this helps accuracy.