Do you practice with the same grain ammo as you carry?

[J Lee]

Same weight but lower velocity.

[Sunkist]

I reload.
I load the same weight and type bullets to the same bullet speeds as my SD ammo.
Accuracy and "feel" are much the same for both cartridges. 
I do believe practicing with your SD ammunition or ammunition that performs the same is a good policy.
A good quality SD pistol, quality ammunition and as realistic as possible practice will be worth the cost and effort.
Just an opinion.

Same here-just makes sense to me.

[OnlyHereForEE]

I stock both. 115 just for cheap plinking. 147 for the gun suppressed stuff