-
FREE MEMBER
NO Posting or PM's Allowed
M!-Garand/ New Barrel & Can't Hit Anything!
-
01-01-2010 11:20 PM
# ADS
Friends and Sponsors
-
FREE MEMBER
NO Posting or PM's Allowed
First-center the sight block by lining up the centerline on the sight, with the centerline on the rifle. Then lower the elavation aperture as far as it will go. Then, raise the aperture 10 clicks. This should be in the center of the target at 100 yds.
-
-
FREE MEMBER
NO Posting or PM's Allowed
Now, make sure the gas screw is tight, as in 10-15 footpounds. A quarter inch drive ratchet with a extension works, and a large screwdriver that FITS will. The single worst thing that causes accuracy problems is a loose screw. And they tend to work loose a lot if they arent tight enough. I hold the cylinder and barrel under the front sight with a crescent wrench to prevent possible twisting. It doesn't have to be gorilla tight, you'll know when the screw stays put. You'll get to a system that works for you.
That should get you started. There are plenty of guys here that will be helpful to you. Let us know how you're doing! Oh yeah-post some pics.
Charlie
-
Contributing Member
You realize, I hope, that the direction arrows on the rear sight denote which way you want to move the shot group. To move the group to the right, turn the windage knob to the right.
-
-
FREE MEMBER
NO Posting or PM's Allowed
About your ammo, what load are you using with your reloads?
-
Legacy Member

Originally Posted by
Charlie59
First-center the sight block by lining up the centerline on the sight, with the centerline on the rifle. Then lower the elavation aperture as far as it will go. Then, raise the aperture 10 clicks. This should be in the center of the target at 100 yds.
This is pretty much where I start with a rifle having an unknown zero. Sometimes I will start at 50 yards with about 6 clicks up. If the rifle is on the paper with a decent group that is off to one side I will drift the front sight a bit in order to get a "mechanical" windage zero. Drift the front sight in the opposite direction that you want the group to move, IE sight to the right to move the group left. I believe this is the main reason that the wide-base gas cylinder came into use.
If a new barrel is not properly indexed the front sight will be tipped to one side (left if over-clocked and right if under-clocked) and the groups will be off. In addition the rifle may fail the tilt test. A rifle will shoot to the left with an under-clocked barrel.
Good luck in sorting it out.
D-
Last edited by cruiserdan; 01-02-2010 at 12:37 PM.
M1 user
NRA Patron Member
Land Cruiser fan
-
-
FREE MEMBER
NO Posting or PM's Allowed
First, I have to say that many GOOD Gunsmiths know very little about M1
Garands.
Garands are unique in lots of ways. The fact that your gunsmith (at the sporting goods store) suggested you replace a barrel that needed crowning, is a hint. Garand barrels must be indexed properly or your front sight will be out of alignment and the rifle will shoot to one side or the other. It sounds like that may be your problem. I would suggest you find someone who understands how to change an M1 barrel and have him check yours out. It may be a very simple fix.
-
FREE MEMBER
NO Posting or PM's Allowed
Did you keep your old barrel? I bought a re-crowning tool that I have used three times so far. It put a decent crown on, and there is information(members to ask) about using them you can find on this Forum, and here: CMP Sales I have found that many gunsmithing tasks you can learn to do yourself. I do whatever I can to save money, but more because I like tinkering around with guns. Somethings I would use a gunsmith for, but not many.
Last edited by Charlie59; 01-02-2010 at 01:43 PM.
-
FREE MEMBER
NO Posting or PM's Allowed
I suggest you get the rifle to a gunsmith use to working on the M1
. There are many of us out there, Orion 7, Fulton and ourselves DGR just to mention a few. There are many factors to the M1s accuracy and someone that is use to working on them can solve the problem. We perform tech inspections for a cost of $65. With a tech inspection you will know what is needed and can then make changes based upon knowledge.
Dean-DGR
http://www.dgrguns.com
-
Advisory Panel
What Devil Dog says is true. You can look at your rifle from the muzzle end and about a yard away and examine the vertical lines of the front and rear sights. This will be painfully obvious if your front sight leans left or right. Most guys don't get the barrel tight enough, so the barrel leans left and yours seems to be doing that.
-