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ZEROING ISSUES
bugeyed_99
Member Posts: 2 ✭✭
I have a millett LRS 6-25 scope mounted on a mossberg 4x4 .338. when i zero at 100 yards and go out to 200 yards instead of shooting 3.4 inches low like it should at 200 it shoots 6-7 inches high. im using winchester ballistic silvertip 200gr. any ideas? One guy said the back base might be lower then the front base. any auggestion would be great
Comments
Hello, and welcome tot he forums here on Gunbroker.com.
First, make sure you are holding the rifle down, and not flinching. Try having someone else shoot the rifle. I would also make sure that the action screws that hold the rifle in the stock are properly torqued down to 50-60 inch-pounds. If the front screw is not tight, it could let the barrel continue to rise under recoil.
Best
8 inches above the bore. Are you sure you don't have about 10 to 20mins of slant built into that scope base?? Something is basically wrong with your set up if nothing is found loose.
Go here and use the calculator after you read the story. http://www.hornady.com/ballistics-resource/external Bob
PS... with a scope 4 inches above bore, a normal load for the .338mag will be close on at 100 and 200 yards. I know your scope ain't 6 1/2" above bore.........
Also, I'm curious, you say at 200 it's 6-7" high. Is it just throwing a few up there from time to time or is it printing the whole group there? Are you shooting across flat ground or across a valley or something where there could be a draft coming up and blowing your rounds off? At 200yds, it wouldn't take a whole lot of wind to do that...