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Lyman™ 457125 Single Cavity Mold 45 Cal 500 Grains - 458-459 Diameter Round Nose

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Quick Overview

The Lyman™ 457125 SC Mould 45 Cal 500 Grains are made from solid leaded-steel and machined to an exact and smooth super fine finish.

Availability: Backorderable



Lyman™ 457125 SC Mould 45 Cal 500 Grains

The Lyman™ 457125 Single Cavity Mold is .45 Caliber 500 GrainsThe 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: .457"
  • Handles Not Included


  • Hardwood Handles are not included and must be purchased separately.
  • Weights given are Lyman's weights with suggested allow; actual weight may vary due to alloy mixture used.

  1. This bullet has been ... review by Louis on 6/12/2017

    This bullet has been around for a long time for a reason! It\'s great for the .45-70 with black powder for long range silhouette matches. I\'ve fired 3\" groups at 200 yards with it, and know that it\'s capable of much better! A time-tested, good design, better than the Postell and Schmitzer by far.

  2. Great mold and bullet ... review by Rick on 6/12/2017

    Great mold and bullet design. Using this mold cut my groups from 3.5 inches to .75 inch groups. Thanks Lyman and Ochocos!

  3. The Lyman molds are all ... review by Neal on 6/12/2017

    The Lyman molds are all of the highest quality and cast bullets that are very close in weight. I have been using this bullet for several years in competition using a 1:20 tin/lead alloy and lubed with SPG. I highly recommend it for .45-70 and .45-90 loaded with black powder.

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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 -