Evnin gents, who am I to say but, you can down load the 17 rem but the little fireball still uses less powder to get the same velocity and therefore is a lot quieter. Shoots pretty flat, (almost) as flat as a 204 all with about 21gr of powder. I said close to, if lined up for mpb range?. I don't know we're ya shoot, but for up here in Canucastan our varmints are getting pushed out by subdivisions and the quieter I can be the better. We have great land to the north but the varmints get bigger. If only I could convince the better half to go north I'd keep the bigger guns but alas not in the cards. Contemplating a stubing on a HR 204 to 17 fireball !!?? Good luck with yours, always fun planning a new project. GWP. πŸΎπŸ‘£πŸΎπŸ‘£πŸ‡¨πŸ‡¦