.177

The mold:

The giant pellets:

In action:

I based the design on a JSB Exact Jumbo .177 cal pellet scaled up to 3″ diameter with slight modifications. I had a local machine shop make the mold to my specs, spent a couple hours with a file tweaking alignments and on the lathe polishing the core pin for easy release, then set about our first casting session. Here are some photos. Projectile weight about 7.3 lbs, cast out of 1:40 tin:lead.

Check out the full thread and more pictures – HERE

Hat tip: Anders R.

4 COMMENTS

By gluing on magnum rifle primers!

Pretty awesome upgrade for the low price of primers, if all you have for a gun is an air rifle.

I wonder if you need to shoot at a hard surface to set it off, or if small varmints would cause the primer to ignite as well? :grin:  I know some primers are pretty sensitive.

I wish I would have known about this upgrade as a kid back in my daisy air rifle days.
 

A YouTube demonstration:

[youtube]http://www.youtube.com/watch?v=j_46IC_1sEE[/youtube]

The pellet used in the video is a .22 pellet, with the open end of the primer facing forward.

I don’t know if “regular” .177 caliber pellets would work as well. The small rifle magnum primers may be too big. I don’t reload, but I’m sure smaller primers are available if needed.

20 COMMENTS