40 sbn

[bobw]

The ODG saw something they liked in the 40 SBN but modern times haven't been kind to bottlenecks in general. Likewise with the 40 SBN which suffers from having its nose rubbed in the dirt by a well known writer and the rep has stuck. Namely that it is prone to create hard fouling in front of the chamber whereby accuracy suffers. I think using the cartridge as designed, i.e. paper patched, and with a grease cookie takes care of the so-called carbon ring or least I don't have a problem with it.

I think you hit it dead on the head here. Shooting Fg in mine and never have had the hard fouling problem either. One hell of a lot of Sharps Mid Range rifles were chambered for this round way before the 40-70 SS came out. Tight original style sharps chamber and ppb with lube wads is the answer for this round. I have to neck size each time to hold a patch to bore bullet for mine and sure wish that didn't need to happen at all. The original 330 ppb's were tapered but I use a .392" patched to.399" with good accuracy in mine. bobw