| 9.3x57 |
| (.450 member) |
| 06/03/24 04:00 AM |
|
Re: Unusual French shotguns, Boucher, St Etienne
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Quote:
The problem with the 2 1/2" short shells is crimping. A roll crimp tool spun with a drill press is the best method of handling that chore.
Brass cases can have a mild crimp done with a coned crimping tool like those on presses for paper cases.
The regular 2 3/4 inch shell cut more or less at the crimp fold makes for an easy roll crimp. Picking hulls w/ a low internal basewad increases internal volume and allows that much more space inside.
US military brass rounds had the heavy roll crimp or the crimping petals I posted pix of in the other thread.
Brass cases I do believe have the most internal space so for buckshot rounds another option might be Magtech brass cases cut to 2 1/2" and waterglass glued shut or roll crimped. A box of 25 would last a long time especially glued shut.
John can you get brass hulls there?
https://www.ballisticproducts.com/MagTec...ctinfo/3921270/