Hi everyone I bought a New R51 that apparently is a 2016 gun. Anyhow ammo was no where to be found for months around me. And I was concerned after hearing all the bad things about FTF on it etc. So I ended up with some Ft Scott 80gr TUI ammo to put in the gun. I have not modified anything on the gun and it has run this with no issues. Expensive stuff but works well. I have since then picked up some Blazer 147 flat nose that has been troublesome and some 115 winchester steel case that has been troublesome and then some 115 fiocchi that runs like the ft scott. Anyhow I just thought I would pass it along if you need some defensive ammo the Ft Scott is available and could be another alternative to look at.
Thanks for the update. Welcome to the forum.