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Simple...try different brands/lots of ammo...that will narrow things down.How old is the rifle?
I ask as I recall reading up about how 17hmr in its founding days was chambered differently in Europe and the US until Hornady establishes the set standards.
Perhaps that's the cause?
Hmm.... wonder if the chambers opened up a little too much. I've seen that happen on occasion though pretty rarely, the brass is uber thin on some of those HMR's.
One wouldn't think you'd get that kind of case expansion unless there's a little xtra room in the chamber. Any issues w/any other HMR ammo? Has he ever had a lot do that before? Maybe the cases are slightly undersized? Not sure what you're representative sample is from, the whole box, one mag, or ?? I guess some precision measuring might prove out something, then again, maybe not.....
Not much help, good luck.
New gun last year. ALL CZ rifles conform to CIP dimensions. Here, ALL problems like this have been with Federal or Winchester cartridges. One of our shooters found all 50 in a packet with split necks.
You know what they say about advise. With a little experience, everyone will find out on their own. Ever try to give your kids advise, to save them some misery?Interesting, if it's worth anything I've shot this stuff out of mine with no issues. Savage B17 FVSR.
I'll keep an eye out with future use with this ammo. Though after field trials I found three CCI ammos that my gun prefers so I'm not too sure if I'll ever shoot any more than I already bought.
Read again, with special attn to last two sentences.When the R.204 first came out, of course there was no brass to reload, so I bought 10 - twenty rd boxes Winchester loads. Everyone split like the picture...in fact, checking a box (unfired) 1/3 of the necks were already split-in the box. I'm sure the problem came from brittle brass- either no or improper annealing of the new case. Since than I've gotten into wildcats, involving a whole new level of reloading. Annealing is a big part of the program...when you work-harden brass, as in forming a new case, you need anneal. If you don't, cases look like the picture. Side note , Winchester brass,etc., is just crap. No W on my bench anymore.
Please straighten me out. Did the shooter find all 50 split in the pack (unfired)? Or all 50 were fired and they all split?
Thanks, Tac!
Huh?You know what they say about advise. With a little experience, everyone will find out on their own. Ever try to give your kids advise, to save them some misery?
Wise men don't need it and fools won't heed it. No offense .Huh?