October 1, 2012, 07:42 PM | #1 |
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Join Date: January 4, 2011
Posts: 7
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case bulging
I had a case separation at the range today and want some opinions. This is for a savage model 12 22-250. i bought the gun second hand from a friend who glass bedded it, new stock and worked up a load for it. I dont know how many rounds through it. This is the load he gave me and I have been shooting:
OAL: 2.407 50 gr V Max 38.0 gr H380 Fed 215mag primer My problem is that every round I shoot comes out with a bulge near the base, more so than I am used to seeing with any other rifle, I am wondering if there is a problem with the gun/chamber. I measured my new unfired winchester cases and they are 0.4620 at the base of the case. all the once fired cases have a buldge 0.3015 in. up from the bottom of the case which measures 0.4660 in. The case which separated was an older case and not a once fired. The primer looks a little flattened to me. I dont think the load is unusually hot except for I dont know what to think of the mag primer. I tried to upload pics but am having trouble with photobucket right now. Maybe this is normal for this gun and I should just keep a closer eye on the age of the brass, maybe neck size only, or I should get the gun to a gunsmith. sorry for the rambling post. |
October 1, 2012, 07:45 PM | #2 |
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Join Date: February 7, 2009
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How does the rifle shoot factory ammo?
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October 1, 2012, 08:52 PM | #3 |
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Join Date: March 21, 2012
Location: Connecticut
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That's a starting load, with standard primer. I don't think you should be seeing flattened primers and headspace separation. Are you full length sizing?
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October 1, 2012, 09:10 PM | #4 |
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Join Date: January 4, 2012
Location: Northern Missouri
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It would seem that your chamber is a bit oversize toward the mouth. Where you describe the bulge occuring is about where the case thins out ahead of the web. A bulge of .004" might not seem like much, but I would be concerned about it. If you full length size on loading that will work the brass and make case separations likely after a few loads. You might be OK and get several reloads if you neck size only. I have to wonder about a fellow who gets a new stock for his rifle, glass beds it, works up a load, then sells it to his buddy, but then I am a suspicious type.
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October 2, 2012, 09:23 AM | #5 | |
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