I use Stainless Steel Hot Shot Nipples on all my sidelock rifles. Uncle Mike I think makes the Hot Shot Nipple and they also make them for Thompson Center and probably everyone else.

There is no change in POI because the burst of flame from the #11 cap is so small in the first place that these Hot Shot Nipples really make no difference in that department. Where they do make a difference is they direct the flame a lot better then some of the factory nipples you find out there. They also split the cap so the cap is easier to remove from the nipple after they are fired. They also clean up a lot better and since they are stainles steel, they last much longer then some of the factory ones out there on the market.

If you're having ignition problems with your sidelocks, switch over to a Hot Shot Nipple... it might make all the difference in the world.