Fun!

Hello tinker,
Thanks for the reply. This should be fun to shoot, and I'll be shooting it in about an hour.

Fortunately the 360 No.5 Rook cartridge is nearly identical to the 38 Long Colt cartridge. That's what I used for reloading. About 3 dozen years ago I purchased a 38 cal Hollow Base Heel Bullet swage die from Corbin. With this die I can insert a standard .357 dia lead bullet, pull the handle, and out comes the Hollow Base Heel bullet. In this case I wanted a 115 grain bullet, so I started with a Speer 158 grain round nose lead bullet. These are fully coated with a wax type lubricant. I snipped-off about 25 grains and inserted the shortened bullet into the swage die. When you pull the handle, it squeezes the bullet into shape, and bleeds off excess lead through 3 tiny bleed holes in the die.

Out comes a perfect heel bullet with a base dia. of .357 and a forward dia. of .375". Bullets are loaded over 2.5g of Trail Boss powder.

Pictures below show the process ..... now off to the range.

I use 2.5gn Trailboss with my .32-20 under a 115gn cast HRBC bullet, these pop out at just over the 800fps mark & aren't too bad accuracy wise in my 1892 Winnie.
I'd say Buckstix you'll get about the same, extremely easy load on the rifle being a straight sided case.
That Corbin press must be something to be able to swage down lead - it must operate at least 5 ton of pressure as that's what our crimpers work at for joining conductors!
Lovely piece again there mate, a mini Snyder...WOW that must be a fair old rarity in itself, let alone still going!
You certainly can sniff out these gems mate, another wonderful piece kept for posterity.
Well done indeed!