resizing 308 cases to form 7.92x33 Kurz

[Bruce_in_Oz]

BigDuke:

There were one or two "semi-auto-ed" StGs floating around Australia back in the 1970's-80s and the owners went through this caper of pulling down "once-fired' 7.62 NATO brass, ALL of which, at the time, was Berdan primed. Where there's a will, and all that.

I haven't checked yet, but if you own a Dillon power trimmer the job would be easier, IF Dillon do a 7.92 x 33 die it will come with the caveats related to other short cases like 7.62 x 39, How many hundred are you planning to form? Neck reaming is a drag, but essential, as is annealing the newly-formed neck and shoulder after the swarf has stopped flying.

The only tiny detail is that the rim on a 7.92 x 33 is the same as a full sized 7.92 x 57 and thus THINNER than the one on a 7.62 x 51. In the good old days in the US, when the place was knee-deep in once-fired, Boxer-primed .30-06 brass, this was apparently not a problem. Then again, my recollection is that there is a bit of play in extractor / bolt-face gap on most rifles. The local StG owners, back in those salad days, did not seem to have any problems, however.

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[bigduke6]

BigDuke:

There were one or two "semi-auto-ed" StGs floating around Australia back in the 1970's-80s and the owners went through this caper of pulling down "once-fired' 7.62 NATO brass, ALL of which, at the time, was Berdan primed. Where there's a will, and all that.

I haven't checked yet, but if you own a Dillon power trimmer the job would be easier, IF Dillon do a 7.92 x 33 die it will come with the caveats related to other short cases like 7.62 x 39, How many hundred are you planning to form? Neck reaming is a drag, but essential, as is annealing the newly-formed neck and shoulder after the swarf has stopped flying.

The only tiny detail is that the rim on a 7.92 x 33 is the same as a full sized 7.92 x 57 and thus THINNER than the one on a 7.62 x 51. In the good old days in the US, when the place was knee-deep in once-fired, Boxer-primed .30-06 brass, this was apparently not a problem. Then again, my recollection is that there is a bit of play in extractor / bolt-face gap on most rifles. The local StG owners, back in those salad days, did not seem to have any problems, however.

Bruce, I wouldn't be making them, time isn't on my side these days, I'm just doing the leg work for someone but it does interest me, probably because it stems from the MP44....... I wonder what the FG42 would of been like with the Kurz