Posted by MarkB_MI on January 14, 2017 at 12:15:14 from (70.194.17.13):
In Reply to: Reloading ammo posted by DeltaRed on January 14, 2017 at 08:06:40:
>The last round I fired split and the 'bullet end' is stuck in the chamber.
That sounds like a case head separation, not a split. Straight-wall cases get longitudinal splits, while bottleneck cases such as 25-20 suffer case head separations. Case head separations are caused by resizing, which stretches the bottleneck case. Eventually the brass gets so thin near the case head that the case body separates from its head.
Broken case extractors are available for popular calibers, but a quick search I ran didn't show any for .25 cal. Your best bet, as someone suggested, is to use a stiff bore brush.
There's a fairly easy test you can do to check for incipient case head separations before you reload your cases. Take a paper clip and straighten it out part-way. Then make a sharp 90 degree bend at the straight end, short enough so it will fit inside the case neck. To check a case, stick the paper clip into case and drag the bent end against the inside case wall near the case head. A new case will feel smooth. After a few loadings, the case wall will start to feel a little rough but should be OK for a couple more loadings. If you feel a pronounced groove, the case head is about to separate and the case must be discarded.
There are things you can do to extend case life. If you have a bolt gun, you can get away with neck sizing only, which won't stretch the case. Or back off your full-length sizing die and just partially size the case. And for popular cartridges, RCBS "X-dies" allow you to full-length resize without case stretch.
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