I'm late to the ball, having just noticed this thread.
I have been playing with a little 5.6x35R single shot stalking rifle, maker unknown. I have been using late manufacture Hornet brass (W-W, R-P, and PRVI) without any modification to the rims. In all fairness the chamber may have been deepened for all I know.
The bore dimensions in this rifle are counter to what's mentioned above. It has a .226" throat, .225 groove, and .219 bore diameter. Twist rate is 1-9". I couldn't believe it either, so measurments were taken a second time, with the same reults. It handles heavy bullets splendidly- anything between 50-60 grains sing- but light 37-45 grain bullets not so well. All are cast bullets by the way. The best performer is the 55gr. Lee Bator, sized to .226, gas checked, and driven with either 4.0 gr. Unique or 6.0gr. 2400. Consistent 5-shot 1/2" groups at 50 yards and 1 1/4" groups at 100 yards are the norm (with enough 1" groups to tempt me to call it a MOA rifle). Small pistol primers used exclusively. Partial neck sized only, RCBS .22 Hornet dies, with a .225 expander ball. Case life is seemingly endless.
My only gripe with the gun has to do with sighting it. I machined mounts to work with a set of pre-existing holes in the barrel rib, and have gone through a succession of American 3/4" scopes of varying quality, with varying results. Currently it's wearing a GAMO 3/4" air rifle scope which belies its $15 price tag! I wish to keep a small diameter scope on it because, frankly, anything bigger seems to dwarf this petite five pound rifle. Anything of German origin that would fit the bill?
