Bought a N.O.S. XP-100 .221 in a small town hardware store somewhere around 1989 or 1990. Put a 6X Tasco (Jap) 30mm Pro Class A.O. on it and played around some.
I'd have to dig up my notes. But loaded Hornady 52 gr. HPBTM over 4198 and went and shot deer with it. The match bullet held together well for poking them in the ribs and they died without fanfare. Shot some groundhogs out to around 300. The match bullets weren't great for groundhogs. Didn't always open. But, in the right hands (not mine) it'd go 5 shots under an inch at 100. It's been in the safe, and not shot in about 15 years.
It'd have to be pretty fun in a compact rifle.
