If they do come out with a 45 in a 1:20 twist I'll take one for sure. One of the best twists for paper patch conicals.it would make a good companion for my 1:18 twist percussion.I think you could get it to shoot sabots also,if Dave manufactures one that is ballistically good for it. The failure of the 1:20 wasn't because of the twist but the lack of offering bullets to compliment that twist