ORIGINAL: Roskoe
Just to add to your thoughts, Phil . . . . there are also certain muzzleloader bullets that just don't fly well at long range - even under calm conditions. The 200 yard group might be five times as big as the 100 yard group.
Others are very good. Like the 250 and 300 gr. Shockwave. If I get a 1.5" group at 100 yards, I usually get a 3 to 4" group at 200 yards.
Hey Roskoe,
The shockwaves are excellent fliers. It occurs to me that I experience more effects from wind than others do because of the projectiles I generally shoot and the charges I propel them with. Lately I've been shooting 80 grains 3f Goex and the 270 ballet. If cross winds
fluctuate by more than 2 mph, its impossible to print an MOA group at 80 yards except by pointing in error enough (by chance) to compensate the windage effects. At a 140 yards, a 6 mph crosswind can move the POI off the target.
The faster the muzzle velocity and the greaterthe projectileballistic efficiency, the less windage affects group size and POI. I think your success, in part (
and in addition to your excellent marksmanship), at 200 yards is at least partially a consequence of the good ballistic properties of the bullets you choose and the relatively high velocities (2000+ fps) they are propelled to.