The muzzle flips up during the shot cycle. Heavier pellets with their lower velocity spend more time in the barrel, so the muzzle has more time to flip up before the pellet exits; this causes a higher point of impact.
I guess the best idea for the shooter is to remember the definition of assume he learned in the military.
Please don't laugh too hard at this reply but could it be the heavier pellet actually gains some velocity? Like a loaded semi going down a steep hill versus an unloaded one?
Quote from: jmars on April 07, 2019, 06:20:02 PMThe muzzle flips up during the shot cycle. Heavier pellets with their lower velocity spend more time in the barrel, so the muzzle has more time to flip up before the pellet exits; this causes a higher point of impact.Thats it .... mostly, tho also accelerating a heavier pellet will also create a tad more bump ( Newtons 3rd law of physics )
Even though a lighter pellet will exit the muzzle with a higher velocity, it will lose more of its energy in the first so many yards, eventually losing out to the heavier pellet at some distance.