Marty's Arms Pin


Item Number: 714012GP
 Review Average:  
 Number of Reviews: 2
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$19.99
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Detailed Description

Marty's Arms Lee Slug Mold Pin (1/bag)

Working with Goodell Shotshell Co, we made a new slug mold core pin that converts your standard 7/8oz and 1oz lee slug molds, into a hollow core slug that is able to accept the GSC cushioned wad, the most aerodynamic slug wad available on the market today.

The Lee mold and handles are not included

Specifications:
  • Top neck: 0.422
  • Middle Neck: 0.462
  • Bottom Neck: 0.487
  • Top + Bottom Of Ring: 0.635
  • Ring: 0.751
  • OAL: 1.128"

 



 Product ReviewsClick here to review this item
Look harder its there. 12/25/2025
Email Ryan Goodell at the GSC website. He designed and makes it. He can provide a little load data. Other than that use the Lee 7/8 data. Lee makes a mold for 7/8 and there is data for it. The Lyman Foster slug doesnt work with this. Use the Thug Slug wad for it. The GSC fits many other slugs though....I like it.
- John Storey, MS
 
Changes weight of slug 11/6/2025
I was really hoping this slug mold modification would work as advertised and it does, but theres a caveat. I have a 1 oz Lee Drive Key mold. Upon installation of this pin, it changed the weight of my cast slugs to 7/8 oz. I cast my slugs in pure lead and can confirm by the mold stamp that it is in fact a 1oz mold. Changing the weight of the slug also nullifies my load data and components purchased for 1 oz Drive Key slugs.
- Caleb M., ID
 

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