making overshot cards price

Place an overshot card on top of the shot charge just before crimping to improve overall crimp quality and seal in small shot and/or buffer. Excellent for use with BPI Roll Crimpers.

Our testing lab has proven that poor crimps can alter the performance of an otherwise good load. Overshot cards always produce better, more consistent crimps and this consistency is demonstrated in the standard deviation of loads in our lab. Our ballistic lab recommends overshot cards for better crimps in all loads.

Clear Overshot Disks(either plain or printed with shot size) are also offered for great roll crimping options. See pictures in Additional Images or click on this link.

Shotshell size selection:Use the same size gauge as your hull. Smaller diameter cards also work if your particular size is out of stock. For example, a 20ga overshot card works in a 16-gauge shotshell and so on.

Our overshot cards range in stock thickness from .030" to .040", depending upon the gauge you select. Overshot cards are essential for roll crimps and they add the finishing touch under fold crimps to improve crimp quality and seal in small pellets and/or buffering materials. Our ballistic lab recommends overshot cards in every load.

If I remember correctly, I believe Ned stated he never used an overshot card as he didn"t want anything over the shot column. The Polywad Spreader system is based on an overshot wad by the way.

Our testing lab has proven that poor crimps can alter the performance of an otherwise good load. Overshot cards always produce better, more consistent crimps and this consistency is demonstrated in the standard deviation of loads in our lab. Our ballistic lab recommends overshot cards for better crimps in all loads.

I thought this could be a good thread to list the other parts/tools for making homemade fillers like OS cards, wad inserts of felt and thick cardboard. Here’s the ideas I’ve read or come up with:

Here’s a link to larger hollow punch, it has 9/16 (.56″) and 5/8 (.625). The 9/16 should work for 20ga OS while the 5/8 for 20ga nitrocards (used for 12ga load spacers).

But really, those CD covers ARE thin and frangible, you can hit it with a pen and it cracks. Same acrylic plastic.The 5/8″ plug cutter worked fine for me with the 20ga hulls, but still I felt like it might be making a wee ridge there after roll crimping. It chambers fine in my 725 Citori and my SX3 though, even cycling them through the mag on the sx3, so…