Garand Thumb or M1 Thumb is the painful condition resulting from a Garand’s bolt slamming into one’s thumb. It’s also the clever name of this blog, where I ramble on about shooting CMP and NRA Service Rifle.
Garand Thumb is often caused by not locking the bolt back as shown below. As long as one locks the bolt back correctly Garand Thumb is in fact uncommon.
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