Bullet Weight Question

[Intarsiac]

Looking at two visually similar .22LR rounds- the bullet weight of a plated hollow point is 36 grains and the weight of a plated round nose is 40 grains. Makes sense, the hollow point weighs less than the round nose.

Looking at two visually similar 9mm rounds- Winchester 9mm FMJ weighs 115 grains but Winchester 9mm JHP weighs 147 grains. Does not compute, it seems that the hollow point (less lead?) should weigh less than the round nose.

Am I not comparing apples to apples? Thanks for any insight!

 

[3rdRcn]

The weight of a bullet really has no relevance to the shape i.e. hollow point vs FMJ round nose. The heavier bullet is normally longer than a lighter bullet, which you can measure when you just have two bullet heads that are not loaded in the case.

 

[shadow116]

When comparing bullets, you have to look at them alone and not seated in the case. If you pulled the FMJ and the HP out of the brass, you would see a length difference. Here is a pic I pulled from the web

 

[Intarsiac]

Thanks for the quick and informative replies! Makes perfect sense now....