Expanding our ReloadingBargains.com ammunition reloading site, I ran across a recent sale that will amuse anyone who likes to see things go BANG! Selling for $500 was a .45 caliber vintage bullet molding tool from Winchester Repeating Arms Co. The two wood-handled pegs are used to create a hollow cavity in the nose of the bullet.
At left is a view of the open mold, with space for one of those pegs to pass through the mold and into the front of the bullet. I was confused by this mold at first, since hollowpoints generally have a much smaller cavity. The hole created by those pegs would be huge by comparison.
The eBay listing for this tool explained the purpose of the large cavity:
The purpose of the hollow point was to allow the insertion of an explosive copper jacketed head in the bullet. I believe these heads were based on a shortened 22 rimfire case.
A .45 caliber that carries a .22 along for the ride to add an extra BANG at the end! I never heard of using .22 ammo for that purpose. I wonder how reliable it is?