***—I wonder how this applies to 8-round M-! Garand en bloc clips? ***
You can get 5 round and 2 round clips for the M-1 Garand.
In high power matches you have to fire 10 shots. That is why the two round clip was made. Many of us have a preference for two 5 round clip in the matches.
There has long been a five round limit on semis for hunting in NY. My cousin hunts with an M1 “tanker” and has been asked to show his clip a few timeswhen he encounters ahunting enforcement officer.