Was at the range today, shooting a mix of .40 and 357mag. I really need to go ahead and get a better .40 powder than what I'm using (Unique) .... entirely too smokey. Don't have another use for Unique tho... so... might just have to trudge through the 6 pounds that are left or something.
Anyhoo, one of my 357 rounds fired very... oddly. *something* caused the round to properly seal the barrel or something. It was a gas escape and low pressure situation with quieter report and softer recoil. Had the standard feeling of getting a light sand blast across hands as well. Made sure barrel was clear and inspected the brass for that particular round.
It's a nickel plated brass and had some... burnt powder 'sand' (lack of a better word) on the outside of the brass about 1/4 way from the mouth. The primer was also not as flattened as is typical of 357mag rounds (even factory).... so... it was obviously a low pressure situation as the round fired. Inspecting the brass, I don't see any cracks, and no signs of head separation. Placing the wall of the brass against a flat surface (ie: edge of calipers), there are bulge(s) in the case.
I use an extremely light to non-existent crimp.
Are there any ideas as to what happened ?
I've marked the brass and will be keeping it out of my recycle bin... just... to try to study it more. I'd really like an idea as to WTF happened. I don't like surprises like that
And for surprises, I bought a Mec 600 Jr for shotshell reloading. My only interest is loading self defense rounds of 3" 12ga with 14-15 pellets of 00buck. Got some Fiocchi primed shells and RP12 wads along with some hornady shot and some blue dot (and appropriate powder bushing). Getting pellets to rest in groups of 3 (per 'layer') is difficult and sometimes make the shells slightly difficult to load into the chamber. 14 pellets doing figure 8 loadings is easier, but not my desire. I've got a few ideas / plans on how to get loading the pellets to be less labor intensive, we'll have to see how they work out. If 14 pellets is the max i can do reliably... then so be it.
Although, I wouldn't be adverse to someone pointing me to a recipe / wad combination that makes this easier. I've seen mentionings of the fiber disc wads in lieu of a shot cup wad combo... but... without a formal recipe, I'm scared as doggy doo doo to try it.
in ... 5 - 6 hours, heading to range to try out the shot shell experiment... always so nervous about firing first reload of a given 'cartridge'... wish me luck
Oh, if anyone's got any suggestions of cheap 00 buck pellets, I'm all ears.... think BC's 8 pound jugs, especially when on sale when buy four... is ... closest i've come to 'good deal' territory, but still over priced IMHO.