Overshot Cards (500/bag)

Overshot Cards (500/bag)
Item Number: OS
 Review Average:  
 Number of Reviews: 5
 View ReviewsReview this item

Detailed Description

Overshot Cards (500/bag)


*SELECT your gauge from the pull-down menu.


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.

  • Overshot cards produce flatter, tighter crimps
  • More consistent load combustion and pellet containment
  • Effectively contains pellets within the shotcup during the firing cycle
  • Added Water-repellant qualities
  • Seals buffer within the shell
  • Excellent for roll crimps
  • Overshot cards do NOT adversely affect patterns
  • Specifications: .030-.040" (thickness can vary +/- .005" due to material variation and humidity) Industry tolerances apply.

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 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.  


Overshot Cards for Brass Hulls


Ga.      Bore Size    Wad Size       Notes


8ga     .835"             .850"  


9ga     .803"             .815" 10ga Thinwall Brass


10ga   .775"             .790" 12ga MagTech overshot card


11ga   .751"             .762" 12ga MagTech Brass


12ga   .729"             .740" 


13ga   .710"             .720" 16ga MagTech overshot card


14ga   .693"             .703" 16ga MagTech Brass


16ga   .662"             .672" 


17ga   .649"             .659" 20ga MagTech overshot card


19ga   .626"             .636" 


20ga   .615"             .625" 24ga MagTech Brass


24ga   .579"             .589" 28ga MagTech Brass


28ga   .550"             .560" 


32ga   .526"             .530" 


.410    .410"             .412" .410 is true bore size


.450    .450"            .450"





 Product ReviewsClick here to review this item
12ga over powder wads 4/30/2024
do you sell less than 500 in an order or lot?
- Charles Baskett, TX
Bags of 500 are our smallest packaging size.
Use .410 Cards In 28-ga. Hulls - Yep 3/4/2024
These .410 cards work great on top of the shot in a 28-ga hull. They are easier to get into the hull than 28-ga cards.
- Mike, FL
Great fit 4/24/2023
I use these overshot cards in Italian -made RC hulls, with the BP Magnum 28 gauge wad and 7/8 ounce of shot. They allow the proper crimp and eliminate stray shot in the bottom of the box from the proverbial too deep crimp. No issues whatsoever in performance and the appearance of the reloaded shells is very nice.
- Steve J., PA
28 Gauge OS Cards solved my crimp issues 7/2/2022
I?ve recently begun reloading 28 gauge and really struggled to get consistent, well formed crimps. The Over Shot cards completely solved this issue. I now get very well formed crimps with much less force. The OS cards also ensure that no shot pellets escape.
- Jim, CA
Ernie 4/26/2021
Work good in 410 hulls and I also use them in 28 ga under shot in the wad to take up space on Cheddite hulls for a less concaved crimp.
- Ernie, ND

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