Maybe not "toss." Cases with split case mouths are still good, such as the .45 Colt, as they can be shortened into "new" rounds. That is how I make my ".45 Special" a.k.a. ".45 Xtra Short" and/or ".45 M1906." Though I've not done so, the .357 Magnum/.38 Special can become the .38 Short Colt....................... So when a case splits, no big deal. I've had a few cases split over the years. Ya shrug ... and toss. Same with split case mouths caused by over working. Toss.
You used the wrong bullet . 125 gr. Hornady XTP is shown , a jacketed bullet ... you used a softer 125 gr. Plated bullet ...the softer bullet expands easier and creates higher pressure .They may both be 125 grains in weight but A Hornady XTP is Not the same as a plated bullet ... Details Matter !I appreciate your counsel as well as the counsel from others!! The recipe I used and have been using for years is printed on the front of the Titegroup powder container. I weigh each charge before putting it in the case. The brass has been reloaded about 4-6 times. I agree with you that it was likely a double charge with the magnum primer that did the damage. Using other powders that occupy more space in the case will make it harder to accidentally load a double charge. I tried but stopped using H110 because of the occasional squib load. I like using the gun for its magnum capabilities so I'll try 2400 in the future.
Thanks Again to all !!!
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True. But for me it isn't worth the time and effort. I'll probably never use all the .45 Colt cases that I have now.... And if I do, Starline will probably still be in business .Maybe not "toss." Cases with split case mouths are still good, such as the .45 Colt, as they can be shortened into "new" rounds.