[TH3180]

If you are loading to the same power factor. The different weight bullets will give you a different felling in preserved recoil. I personally like heavier bullets 180gr in 40 and 147gr in 9mm. I fell the recoil is more of a push compared to a snap like I get with lighter bullets. I fell I can get back on target faster with the push compared to the snap. Get some of each load them up and see what you like.

 

[TH3180]

I think its safe to say everyone got it right. The grain is the weight, just make sure you note, the higher the grain-the higher the weight of the bullet and most likely higher amount of powder. More powder is necessary when the bullet is heavier due to the larger mass needing to be moved. So a higher grain can be louder, and also have more recoil/kick than a lower grain

Nope, heavier the bullet equals less powder in the same caliber.