New MP Mold for .455 Webley (hollow base)

by AaronB, Friday, March 13, 2026, 08:38 (7 hours, 5 minutes ago)

I had a recent birthday and my beloved got me the thing that was at the top of my wish list... this bullet mold from Ljubljana, Slovenia!

Using my mongrel alloy (some wheel weights, some pipe lead, some spent air rifle pellets, some sinkers) with just enough plumber's solder to help with filling out the mold, I was able to cast these:

They're dropping right at .455, at 257 grains dry. With lube they will be close to 260 grains on the button. You will see from the photo that the nose-pour sprue is a little rough; I can address this by cooling the sprues before I cut them.

I have some pure lead ingots on order, and I am going to see how well this mold pours with pure lead. I anticipate some weak fill-out, but my hope is that with sufficient heat I can get it done.

Many a Webley shooter can use these I bet.

-AaronB