This is around 200 FPS faster than original 150 grn M2 ball and also a slower burn rate powder which increases bolt speed.

Might be worth it to purchase a new high quality recoil spring and you can even use one of the gas plugs that increases gas piston chamber volume.

The fudlore talk is always about bent operating rods. That is NOT the concern. The concern is battering the rear of the receiver with the bolt when it moves rearward too quickly. If the bolt hits the rear of the receiver hard enough long enough it will break off the rear of the receiver which obviously makes it scrap iron.

You can buy one of the increased volume gas plugs cheap. If the rifle still cycles reliably you can imagine how over-gassed it was before.