Garands need nearly full breech pressure 1 inch from the muzzle in order to reload. In fact in the Normany landings, water would get in the ports and the gun would fire, but not reload itself, and guns threw them away initially thinking they were jammed, but they really weren't, they just needed to be recocked each time. That gas port is touchy, you've gotta have just the right load and a very efficient firing. That's a lot of why it kicks so much I think. Also the FAL has a top gas port, and the Garand has a lower port. In my experience, lower port guns kick and climb more
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I twist the facts until they tell the truth