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sigcurious · February 19, 2013, 05:33 PM

Grain is a measurement of weight. In the case of a 40gr .22lr round, it means the bullet(the projectile) is 40gr, it does not refer to how much powder. Factory loads only(AFAIK) specify the bullet weight, like 115gr, 124gr, 147gr 9mm ammo etc. IIRC, all other things being the equal, yes a heavier bullet will have a lower perceived recoil. But the actual recoil may very well be higher.

February 19, 2013, 05:33 PM	#3
sigcurious Senior Member Join Date: May 25, 2011 Posts: 1,755	Grain is a measurement of weight. In the case of a 40gr .22lr round, it means the bullet(the projectile) is 40gr, it does not refer to how much powder. Factory loads only(AFAIK) specify the bullet weight, like 115gr, 124gr, 147gr 9mm ammo etc. IIRC, all other things being the equal, yes a heavier bullet will have a lower perceived recoil. But the actual recoil may very well be higher.