However, if the shooter does not fully retract the bolt, the op-rod catch never engages the op-rod and the bolt can get stuck on the follower. When this happens, ONLY the friction between the two parts prevents the bolt from flying home.
If you bump the rifle, or stick your hand in the receiver, the bolt will snap shut. If this happens, you'll be telling your friends how you just joined the club. The image below shows how the bolt can get hung up on the follower. When the bottom of the bolt is properly greased it's very difficult to get the bolt to hang up as shown. With the op-rod locked back you can depress the follower almost all the way down before the bolt releases.
However, if you pull back on the op-rod, even slightly and then depress the follower, the bolt will immediately snap shut. With the bolt correctly locked back you can safely clean and access the internal component without fear of the bolt closing on your hand. Just remember to never pull back on the op-rod when touching the follower unless you wish to close the bolt. If you're holding the operating rod handle you can safely ease the bolt shut.
When loading single rounds without a clip we recommend that the shooter ease the bolt about half way closed and then allow it to fly into battery. Never ease the bolt all the way closed on a loaded round. In the photo below you can see an enbloc clip about to be inserted into the receiver. When the shooter depresses the clip into the receiver the follower is depressed, the clip locks into place, and the bolt is released. With the shooter pressing down on the top round in the clip the bolt will not be able to fly home until that downward pressure is released.
The top round occupies the space where your thumb would have to be, to get caught; making it almost impossible to pinch your hand when loading a clip. N ow that you understand how one can get a M1 thumb, you're in a position to never join the club.
Practice loading clips using dummy rounds and gain confidence in the process. Within a very short period of time the process will become second nature and the risk of accidentally smashing your thumb will have passed.
Important: At GarandGear. Letting it a little lower on the pad does help keep the pulse down in the front sight. When the bottom of the bolt is properly greased it's very difficult to get the bolt to hang up as shown. In the reduced matches I am pretty confident on my belly, but the wind and distance is certainly humbling.
When the shooter grabs the op-rod handle and pulls it back smartly, the op-rod engages the op-rod catch and locks it in place. With the shooter pressing down on the top round in the clip the bolt will not be able to fly home until that downward pressure is released.
A Garand-Thumb often occurs when you try to close the bolt on an empty magazine. As you can see, the bolt was resting on the follower and released as soon as I touched it with my thumb. Important: At GarandGear. M1 Garand 2 Round Clip. Then one encounters a true M1 thumb, which could be more accurately called an M1 thumbnail, a crescent shaped blood blister underneath the thumbnail, or a cracked nail complete with blood spatter. This year I signed up for as many matches at Camp Perry as I could squeeze on the calendar.
In this second match, I was able to keep all but 3 rounds in the black, two eights in rapid, and one in off hand.
I ended up at number 14! Never ease the bolt all the way closed on a loaded round. This little gun killed my streak. All said it was a great week. Knowing how I learn I figured the dry fire portion of the basic class would be of the most benefit to me. That is the name for when the bolt of an M1 Garand slams closed on your thumb. If you bump the rifle, or stick your hand in the receiver, the bolt will snap shut.
For the P I did much better in off hand. The saying goes that there are two types of M1 Garand shooters. Oh boy, did I learn a few things. I was able to take home a Silver in the Springfield match posting what, at the time, was my personal best across wood guns! On the other hand, it tells me is I need to focus on applying these same fundamentals to the rapid strings.
KFGA tends to be bight and sunny on the line and dark down range so typically my prone scores end up a little lower here, compared to other places, perhaps I have over come that, or the light was better this month. I had a great time, shot well in several events, and took some lumps in others. Often people will get a Garand-Thumb because the bolt has not been pulled fully to the rear.
We had spent a fair amount of time worrying, strategizing, and throwing rounds down range. This rifle had performed well for me at a local match and at the range so I was excited to try her out at Perry. Back to the yard line. The builder tells me the tricky part is getting the gas port the right size for it to cycle. If you are not satisfied with your purchase you may return it within 30 days of purchase.
Othais is practically useless with modern firearms. M1 Garand and your Thumb. With the bolt correctly locked back you can safely clean and access the internal component without fear of the bolt closing on your hand. It is M 1 Thumb has been the center of rifle lore for many decades. With the op-rod locked back you can depress the follower almost all the way down before the bolt releases.
Rapid prone came out well and, dispite some slop in off hand, I was able to tie my personal best with the Garand! I clearly need to go back to the lab on this gun and get some trigger time.
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