This is what I have gotten out of my 10" T/C with a chrony and factory ammo.
Remington UMC (yellow box) 125 sp = 1912 f.p.s avg. This would be way too light a bulletIMO to use on a deer at this velocity. For some reason the UMC 125 seem to be a hot load compared to the winchester and Federals 125's I have chronied(they average about 100 f.p.s. less. I am curious if anyone else has noticed this with the UMC factory 125's. The ammo above is the only factory stuff I have schronied. The other are reloads and I have gotten the following...
16 gr. AA #9 with 125 Hornady xp/hp= 1811 f.p.s
15 gr. Lil'Gun with 180 Hornady xp/hp= 1456 f.ps
12.9 AA#9 with 180 Hornady xp/hp= 1453 f.p.s
I had some data for 18 gr. Lil'Gun with the 158 fp/hp but, can't seem to find it.
I used both the 158 and 180 to hunt with unfortunately, I was not able to get a deer so I can't tell you personally how these performed on deer but, have only read good things about how they have done and that is why I picked them to use.