After doing some hole size testing I have found out some interesting things about the hole sizes.


A new nipple installed in green mountain barrel that came from the factory NEVER shot .034
New Hot Shot nipple Uncle Mikes package, .034
New Hot shot Nipple Thompson Center Package, .034
New Hot Shot nipple Track of the wolf package, .026

I have never shot anything but Hot Shots from TC. That is what the local Sportsmans warehouse used to stock. For about the last three years they have not carried them. I went online to get more and picked up some here and there. Then I decided to order from track of the wolf.
I wish I would have measured the actual hole that was in the Buffalo arms platinum lined nipple. But I am being told it is .026

I have been using Pyrodex P for a very long time around 10 + years. The TC hot Shots have always went bang every time no issues. From what I am seeing I have been using a nipple hole size of .034 with the pyrodex P. Maybe the P won't work with the .026 Interesting seeing those numbers.