Cz527, Varmint. I like the trigger and the mini-mauser action.
Great little round- "Zero" recoil, flat, hard-hitting, cheap reloads. Everything the 17HMR can do but better (and no dodgy ammo.)
Accuracy is typically 0.5-0.8moa with factory 20gr Vmax, though the velocities on the box are highly optimistic!
Handloading 0.4-0.6moa, occasional "wonder" groups better than this but only in perfect conditions.
25gr Vmax could be driven remarkably fast using DO63 (AA1680 to all intents) without pressure signs in my rifle, hits harder and bucks wind better than 20gr (but still v drifty).
20gr Vmax has been marginally more accurate than 25gr, using Lil Gun.
Very Cheap 17gr bullets are available and some reloaders report good results but I haven't persued this option. I bought the bullets with a view to a "light" rabbit load but I think it's not going to work.
Mine shoots better when clean, however I'm paranoid about fouling now as Lil Gun and DO63 are mucky powders and Jonny Elsemore (POI on YouTube) rotted his barrel in short order...
Barrel life unknown to me but it's not exactly a huge amount of powder and not an overbore design so should be good in hunting role.
Explosive terminal ballistics on feather. Rabbit meat v badly damaged by body shots inside 200yds.
Range on fox is very dependent on shot placement, as others have said: the drop is minimal but the Drift is not! Mine is not a foxing rifle so I have only limited experience in this respect but no runners yet.
The Hornady brass isn't great; S&B is meant to be better but I've not found any to try yet. Some (early issue?) Hornady brass had shallow primer pockets, preventing most primers from seating (except Fiocchi).
Ignore Hodgdon's online load data for Lil Gun: start way below their min and work up in v small increments. As in posts above, precise Reloading practices are crucial. A 0.2gr weighing error for a 9gr charge is way more significant than for a 40gr load. You'll probably need some specific 17cal kit for reloading (funnel, flash hole deburr tool.)
I bought the 17Hornet to replace the (erratic) 17HMR, and use it similarly. If you want a dedicated foxing or longer-range corvid/rabbit rifle I'd look at 20cal or more.
