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Lyman™ 457643 Single Cavity Mold 45 Cal 400 Grains - 458-459 Diameter Flat Nose Bullet

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Quick Overview

The Lyman™ 457643 SC Mould 45 Cal 400 Grains are made from solid leaded-steel and machined to an exact and smooth super fine finish.

Availability: Backorderable



Lyman™ 457643 Single Cavity Mold 45 Cal 400 Grains

The Lyman™ 457643 Single Cavity Mold 45 Cal 400 Grains. The mold is 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.

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. Mold handles are not included.


  • Machined Leaded Steel Mold Blocks 
  • Single Cavity Mold
  • Steel Sprue Plate 
  • Common Sizer Die Diameter: .458-.459”
  • 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. Good Levergun Bullet review by PEB on 6/12/2017

    This bullet is perfect for leverguns. Feeds easily, wide meplat, generous lube grooves, and plenty of mass. Depending on alloy type it will cast out near 420-430 grains. Heavy hitter for my Marlin Guide Gun.

  2. Sometimes one at a time works review by JW on 6/12/2017

    I prefer multiple cavity molds but with single cavity you can be moved careful on each bullet. In this case I wanted this particular shape and single cavity was the only way I found to get it. There maybe multi cavity mold out there with this shape\\weight but I could not find it. Am very pleased with results I\'m getting. And I actually enjoy casting so don\'t mind the one at a time mold. Once it is at casting temperature it just rolls out beautifully snapped bullets at a good rate. I am very satisfied with this mold as with all Lyman molds I own

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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 -