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M1 Garand

Posted on 10/18/24 at 10:04 pm
Posted by kew48
Covington Louisiana
Member since Sep 2006
1573 posts
Posted on 10/18/24 at 10:04 pm
Anyone in the Covington/Mandeville area willing to help me sight in an M1 Garand ? - Never done this ! Thanks
Posted by finchmeister08
Member since Mar 2011
39819 posts
Posted on 10/18/24 at 11:12 pm to
Look into the CMP program… unless you want a new one.
Posted by bigtiger440
Member since Sep 2009
934 posts
Posted on 10/18/24 at 11:16 pm to
quote:

Look into the CMP program… unless you want a new one


I don’t think you read his post did you?
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
71281 posts
Posted on 10/19/24 at 7:34 am to
Is it a cmp rifle? Do you have the owners manual? I think there's a zeroing for dummies thing in there.

Sidenote, the CMP owners manual for the M1 is a cool book to have even if you dont have the rifle
Posted by jbgleason
Bailed out of BTR to God's Country
Member since Mar 2012
19891 posts
Posted on 10/19/24 at 7:58 am to
DO NOT fire commercial full power 30-06 ammo in a Garand. You will damage the op rod. You need to purchase Garand specific 30-06 ammo that is downloaded. You have been warned.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
71281 posts
Posted on 10/19/24 at 9:05 am to
quote:

DO NOT fire commercial full power 30-06 ammo in a Garand. You will damage the op rod.


CMP has changed their guidance on this. They have an article on their website about it. Most 150gr commercial ammo is safe to use. Surplus ball ammo is hard to get and costs way too much now.
Posted by finchmeister08
Member since Mar 2011
39819 posts
Posted on 10/19/24 at 9:08 pm to
quote:

I don’t think you read his post did you?

I didn’t. I have a bad habit of doing that.
Posted by Clames
Member since Oct 2010
19032 posts
Posted on 10/19/24 at 11:08 pm to
quote:

Most 150gr commercial ammo is safe to use. Surplus ball ammo is hard to get and costs way too much now.


No, wouldn't run any new commercial ammo that isn't M1 Garand specific. Federal, S&B, and a few others make M1 Garand ammo. I personally reload for mine and it loves 155gr Palmas.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
71281 posts
Posted on 10/20/24 at 8:36 am to
quote:

wouldn't run any new commercial ammo that isn't M1 Garand specific


Why not? I believe the CMP article lists some specific commercial loads that are safe. The 150gr stuff is going to use relatively fast powders and port pressure shouldn't be a problem with those.

Either way, an adjustable gas plug is cheap and easy insurance against it. If you aren't shooting matches, there's no reason to not have one.

FWIW, I shoot off the shelf 150gr in mine with the garand gear gas plug. I hunt with it, so M2 ball ammo is a no-go. Handloads I stick to garand specific loads.

Garands are awesome and everybody should own at least one.

Eta: here's a cool study done recently by a SAMMI lab worker guy with some good conversation

LINK

Anybody who owns a garand and wants to learn about it can get way deeper than they want into any minor detail on the CMP forum. Those guys are autistic about these rifles. Mines an old battle axe that goes hunting so I don't really jive with all that stuff, but it's a great resource to have handy.
This post was edited on 10/20/24 at 8:47 am
Posted by kew48
Covington Louisiana
Member since Sep 2006
1573 posts
Posted on 10/20/24 at 10:54 am to
Thanks for all the replys and yes it’s a CMP rifle ! Plan to get a gas plug too. I’ll read up on the sighting procedure but would like some help to set up the sighting .
Posted by Clames
Member since Oct 2010
19032 posts
Posted on 10/20/24 at 6:16 pm to
quote:

I believe the CMP article lists some specific commercial loads that are safe.


Yeah, there are commercial products specifically designed for the Garand. I have Federal and Hornady commercial M1 Garand ammo. I wouldn't run just any commercial 150gr load though.

quote:

Either way, an adjustable gas plug is cheap and easy insurance against it.


Yes but why bother when you can just run safe ammo or, better yet, load your own? My Garand is an all correct post-War model that was never issued so it is in pristine condition and I intend to keep it that way.
Posted by DownshiftAndFloorIt
Here
Member since Jan 2011
71281 posts
Posted on 10/20/24 at 7:07 pm to
quote:

Yeah, there are commercial products specifically designed for the Garand. I have Federal and Hornady commercial M1 Garand ammo. I wouldn't run just any commercial 150gr load though.


Why? If the port pressure is within the range of what the rifle was designed for, why worry?

quote:

why bother when you can just run safe ammo or, better yet, load your own?


Not everyone reloads. Garand specific factory ammo is not common on the shelf and not the most affordable, and is usually FMJ.
Posted by Clames
Member since Oct 2010
19032 posts
Posted on 10/20/24 at 7:22 pm to
quote:

Why? If the port pressure is within the range of what the rifle was designed for, why worry?



It's not just port pressure that is a potential issue but the pressure timing. My thing is is that I read a lot of research on gas flow modeling in military small arms, research where they are finding issues that aren't inherently obvious that are being found as the root causes of parts breaking or abnormal wear, part of why the Army made changes to M855A1. None of that really applies to a Garand but I will err on the side of caution as there could be issues that simply will not be readily apparent until something breaks.
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