Im new to this website. But I have a marlin model 336 30-30 rifle thats probably 8 years old, but not really shot a whole lot for a marlin! And ive heard that when the riflings in a rifle wear out that your shots are all over the target. I was wondering if that's true and how for sure you could tell if there wore??? About 3 months ago, I put a simmons scope and Leupold scope rings on and there seems to be a problem zeroing it in. I can put two shots nearly in the same hole and then a couple rounds later i'll put two more rounds nearly in the same hole but there about 3 inches to the right. I have no idea what the problem is. Any help please?
Not sure about a civilian rifle , but it takes several thousand rounds to wear out a military rifle barrel .
I have a M1 Garand w/ a WWII receiver , 1948 barrel ( most likely rebarreled after WWII ) . My guess is it must have went through Korea ?
The sharp edges of rhe riflings are worn kind of rounded .
A few years ago , when I could see better , it would do 2" at 100 yards w/ Lack City 69 USGI surplus ammo .
My guess is it has had at least 5000 rounds down the tube .
Most civilians can not / will not spend the $$$ to put enough rounds down the tube to wear it out .
I also have military surplus bolt guns that have bores that are kind of sad looking , that shoot pretty good .
God bless
Wyr