NOE .50/70 mold

[Kurt]

I haven't shot a hollow based or mini bullet for some time. There is a slight difference between the two. The hollow based bullet has a thicker skirt then the mini, but regardless I loaded them the same except for the powder charge. The mini will mot take a heavy load. It will blow the skirt when it clears the muzzle.
The best way I found to shoot both is fill the cavity with a soft lube, you can put a wax paper wad over the base or with out and seat it right on the powder. I have never found it to be a problem with the oil from the lube contaminating the powder.
The lube is a benefit for protecting the bullet base and it also is a big plus for shooting dirty.
I have pulled hollow based GG bullets from vintage .44's and .43's Remington Rolling Block rifle loads that where loaded this way.

Kurt