making overshot cards brands
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 custom logo overshot cards are the favorites of our ballistic lab. We use a heavier stock material (.045") and apply a water-repellant coating to both sides. The result is an attractive and highly functional overshot card.
Use: Simply 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 BPIRoll Crimpers.
Excellent for roll crimpsOur 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.
The clear overshot card for roll crimps. You"ll know instantly what is inside every load. This is an excellent topcard for spreader wads. The material is frangible and breaks up immediately upon shot thrust. The stable platform offers a near-perfect surface for ideal roll crimps -- every time. Use in any overshot card application. Designed with a pressure-relief notch for high-speed loading.
Next, the user simply slides the material to be punched into the feed port and begins operating the press as normal. As filler wads are punched, they will be pushed out the top of the die where they can be collected. If the operator’s intention is to produce a great many filler wads in one sitting, it is advisable to place a container (a margarine container works well) with a hole cut in the bottom on top of the die, allowing them to stack up inside and avoid making a mess.
Next on the list is my second favorite material, cork. Once again the press made short work of the 1/4″ thick cork sheet. The great thing about cork wads is they’re extremely dense and won’t compress, making them ideal for heavy projectiles like slugs, roundballs, or filling large voids in the shot column.
Finally we have plastic blister packaging. Although not biodegradable, I really like having a transparent option on hand when I need something as an overshot card. Once again it cuts smoothly, and easily. The material demonstrated above is actually plastic from grocery store salad containers if you can believe it, however thicker packaging not only punches well, it crimps even better.
The finished filler wads measure 0.650″, the same internal diameter as a standard 12G shot cup, and an equally excellent size for use as overshot cards. With a good supply of these on hand, it’s no trouble at all to customize my shot columns by placing them above or below my shot or slugs. Likewise, if I’ve got a difficult load to crimp like low-volume birdshot or roundball slugs, adding one to the top as an overshot card makes things a snap.
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.
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.
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.
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.
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 Ballistic Products Roll Crimp tools.
If you’ve been reading my articles for any length of time, you probably know I load a lot of shotgun shells using Lyman and other published data. Over the years I’ve also developed a large number of custom loads, many of which require filler wads or overshot cards to get the correct shot column and a good crimp. Although these aren’t the most expensive components on the market, they still add up, particularly if you need several per shell. To make matters worse, they’re often difficult to find, particularly if your local gun store stops stocking the brands you’re accustomed to.
With this in mind I’ve designed and manufactured my own custom punch for producing 12 gauge filler wads and overshot cards. The model shown in the video above represents my prototype, which I’ve been using and testing for quite a while now.
With a good supply of these on hand, it’s no trouble at all to customize my shot columns by placing them above or below my shot or slugs. Likewise, if I’ve got a difficult load to crimp well, like low-volume birdshot or roundball slugs, adding one to the top as an overshot card makes things a snap.