Well, I plan to use Rapine .38 RNFP-HB bullets through my Remington Navy conversions but I have a few concerns. First, I've used my .45 Remington conversions without a wonder wad or grease cookie between the powder and bullet and with black, it works fine but will bind up in short order if I don't use them. Now that's with a flat base bullet so there's no problem here.
The problem is that with the .38 hollow base bullets, if I don't use a wonder wad or grease cookie, I'm expecting the same binding trouble that I had with the larger Remingtons. If I use a wad between the bullet and powder, am I going to have problems with the wad not allowing the skirt to expand like a Minie ball and grip the rifling? If it does still expand, is there going to be problems with the wad sticking in the base cavity and throw off accuracy? Anybody got any ideas here?