Re: M70 .300 Wby Mag throws bullets
Possibly copper fouls quickly, or he's dumping so much powder that it shoots "dirty"
My Model-70 300wby (factory win) 24" pipe liked IMR 4831, but it fouled quicker with IMR stick powder vs Winchester 780 Supreme ball powder.
Apples to Oranges tho. Mine was a short factory pipe. His is a longer custom pipe.
Most custom pipes are not prone to fouling as quick as "rough" factory pipes.
Possibly the throat may be shot out, & he could have it set back 1/2 inch or so.
I'd have a competent smith scope the bore.
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