Mr_Pale_Horse
Member
Or maybe screw balls.
I spent 3 hours at the range working with my Lyman Trade Rifle. I had ran out of BP earlier this year, and got 3 more pounds of GOEX FF. I wanted to check my zero, just in case this lot was different from the batch I had bought 2 years before.
I started at 25 yards, and adjusted to dead on (I have the Lyman 57 SML receiver sight). At 50 yards, POI was about 1 inch left so I moved the sights to be 2" high at 50 yards, dead center otherwise.
Then, at 100 yards, POI was 8" left.
I rechecked at 50, still 2" high.
I rechecked at 25, .5" high and 1" RIGHT.
It looks like helical yaw anomaly you might see in overstabilized conical rifle/pistol bullets.
I am using .535" 54 round ball, .018 pillow ticking, spit over dried Moose milk lube, 110 grains of FF.
Any ideas.
I spent 3 hours at the range working with my Lyman Trade Rifle. I had ran out of BP earlier this year, and got 3 more pounds of GOEX FF. I wanted to check my zero, just in case this lot was different from the batch I had bought 2 years before.
I started at 25 yards, and adjusted to dead on (I have the Lyman 57 SML receiver sight). At 50 yards, POI was about 1 inch left so I moved the sights to be 2" high at 50 yards, dead center otherwise.
Then, at 100 yards, POI was 8" left.
I rechecked at 50, still 2" high.
I rechecked at 25, .5" high and 1" RIGHT.
It looks like helical yaw anomaly you might see in overstabilized conical rifle/pistol bullets.
I am using .535" 54 round ball, .018 pillow ticking, spit over dried Moose milk lube, 110 grains of FF.
Any ideas.