Can the BRP 250180 or 260200 be loaded in N frome or Colt MKIII in 357 case?

[Snafu12]

I was thinking about a HP mould for the above

[BABore]

I was thinking about a HP mould for the above

I assume your talking about the 360180 GC (640 Nose) and 360200 GC. The nose lengths are listed under the boolit pics on my site. Measure your cylinder length, case length, and deduct the rim thickness if your cylinder is not counterbored. Do the math and see if the nose length is ok. Both designs have two crimp grooves with nose lengths of 0.318 and 0.380.