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Lyman™ Single Cavity 12 Gauge Foster Mold - 475 Grains Shotshell Foster Slug Bullet Mold - 705 Diameter

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Quick Overview

The Lyman™ SC 12 GA Foster Mould 475 Grains are made from solid leaded-steel and machined to an exact and smooth super fine finish.

Availability: Backorderable



Lyman™ Single Cavity 12 GA Foster Mold 475 Grains

The Lyman™ Single Cavity 12 Gauge Foster Shotshell Bullet Mold 475 Grains. Lyman Bullet Molds are made from solid leaded-steel and machined to an exacting, super smooth finish. All Lyman™ molds are heat treated which, causes the metal to appear blue in color. The mold features hardened steel alignment pins that provide you with years of bullet casting. These molds cast perfect hollow base Foster-style slugs which do not require rifling. Slug molds are 1-cavity molds that are cut into the larger 2-cavity mold block. 

The mold's sprue plates are made from solid steel, which are ground flat and held tightly in place with tempered steel spring washers and screws. In addition, Lyman™ molds required break-in time is often half the time required for iron molds. These molds require large mold handles which are sold separately. Lyman™ Round Ball Molds are designed to cast perfect balls with a minimum sprue to ensure the kind of accuracy that target shooters have come to expect from Lyman molds.


  • Machined Leaded Steel Mold Blocks 
  • Single Cavity Mold
  • Steel Sprue Plate 
  • Casts Hollow Based Slugs
  • Hardwood Handles are not included and must be purchased separately.
  • Weights provided are Lyman's weights with suggested allow; actual weight may vary due to alloy mixture used.


  1. Lived up to expectations ... review by Martin on 6/12/2017

    Lived up to expectations of Lyman mold products. I have quite a few of them. This one is quite a bit more difficult to use but I expected that from a hollow base mold, just not quite as much as it ended up to be. I would suggest the plug have a little more taper to make removal easier. I intend to make that modification as soon as I can get to it on my machine lathe. Not everyone has the equipment available to make that modification. The only other ability I would like to see is to be able to adjust the depth of the plug. That is on my list to do after this year hunting season. I intend to purchase mold # 1244020 in the near future (20 Ga.) and will be making both modifications before use. I hope this is helpful. Note: The plug comes out OK for me with a sharp rap on the bottom of the plug handle before trying to remove it. Maybe I am doing it wrong, if so I would like to know the secret.

  2. Lyman Quality Mold review by Iowa on 6/12/2017

    This a typical Lyman product, I have been using their molds for 50 years and have never been disappointed.

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Most items ship within 1 business day. We ship orders from our warehouse Monday through Friday. If an in-stock order is placed on Friday evening, Saturday or Sunday, it may not ship out until the following Monday. We rush-ship directly to customer's doors throughout the United States. Depending on the shipping method and area of the country, orders can arrive between 1 and 7 business days. 


Standard Ground FREE over $50 4-7 Business Days
Three-Day Variable Cost 3 Business Days
Two-Day Variable Cost 2 Business Days
Overnight Variable Cost 1 Business Day

First Class $3.00 to $5.00 1-5 Business Days
Priority Mail Variable Cost 2-3 Business Days


If you are not 100% satisfied with your order, you can return it to us for a refund or exchange within 30 days of delivery. We accept returns on all products that have not been used or registered, no questions asked. All returns are subject to a 5% Re-Stocking Fee. To make returning an item easy, contact our friendly customer service representatives toll free 1-855-297-7000.

warning-iconWARNING: This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to -