I Own Guns

The Lyman 452488 mold

Written on October 17, 2013   By   in Bullet casting, Bullet Molds, Reloading

The Lyman 452488 is a semi wadcutter design, meaning that instead of just a round nose, it has a shoulder with a flat point ahead of that. The 452488 has a fairly rounded sweeping shoulder and a short nose. It is very similar to the Hensley and Gibbs #130 mold. According to the Lyman catalogs, the 452488 should weigh 185 grains when cast from Lyman #2 alloy. When cast with my alloy, they run about 192 grains from my mold.


The 452488 bullet design works very well in virtually any revolver chambered for the .45 calibers (though a bit small for some of the older .45 colts with larger groove diameters) and will often run just fine in most of the auto’s as well.

The mold that I have is a 4 cavity version purchased used at a gunshow several years ago, along with a number of other molds. I didn’t use it right away, because I had other .45 molds. When I did start using the mold I was pleasantly surprised by how easy it was to cast with, and what excellent results I received from the mold.

After getting the Reising earlier this year, and doing some experimentation, I discovered that the bullet is both functionally excellent, and pin-point accurate in that gun. This is the point when I express how glad I am that I have a 4 cavity of the design, I can’t imagine sending the time it would take to run this as a double cavity, let alone a single. I wish of course that it was a 6+ cavity mold, but I’ll settle for 4 considering the results with the Reising.

After seeing how well the design did in the reising, I revisited the bullet in both my Para Ordnance and the S&W 625. I still need to run through some more testing with the other .45’s that I have, but I can say for certain that the bullet, with a reasonable load, is capable of excellent accuracy in all of the guns that I’ve done any extensive testing in.

All in all, I like the 452488 a lot, it saves me lead over casting a full 230 grain RN, feeds and functions well in all of my guns so far, provides excellent accuracy, and the design makes the mold a breeze to cast with. If you can get your hands on one, I recommend it.