I have been reloading rounds for my 225 winchester recently, and had a chance to zero a new scope and try out my reloads for it.
i am putting a 55grn sp on top of 34 grains of h380 powder with cci primers. The bullets are seated to give maximum case length, which is 2.50.
I zeroed the scope with my reloads, shooting my best group yet, just over 3/4 of an inch. then i ran out of my reloaded rounds, and shot up a partial box of factory winchester ammo. i took 3 shots and could not even tell where they hit. i looked and they were printing about 5 inches left and 2 inches low.
I came home and measured some factory rounds from winchester and they all measure out at about 2.49, instead of the 2.50 that i was loading them to.
will OAL and the difference in powder(I dont know what Winchester uses for powder, or how much) cause a consisten point of impact change?
I am taking a guess and figuring on just shooting my handloads from now on?
i am putting a 55grn sp on top of 34 grains of h380 powder with cci primers. The bullets are seated to give maximum case length, which is 2.50.
I zeroed the scope with my reloads, shooting my best group yet, just over 3/4 of an inch. then i ran out of my reloaded rounds, and shot up a partial box of factory winchester ammo. i took 3 shots and could not even tell where they hit. i looked and they were printing about 5 inches left and 2 inches low.
I came home and measured some factory rounds from winchester and they all measure out at about 2.49, instead of the 2.50 that i was loading them to.
will OAL and the difference in powder(I dont know what Winchester uses for powder, or how much) cause a consisten point of impact change?
I am taking a guess and figuring on just shooting my handloads from now on?