OK, I know what it means but I don�t understand the meaning of the word. What is a tack and where do I want to drive it?

They never told me this in the english classes in the schools I've attended.

HerrBerg

A tack is a very small nail that has quite a large flat head. Often used to nail soft things like leather or carpet.

Mike

...and since they make cheap, simple, small targets when stuck in a board, you want to drive them through the board with a bullet...we used to drive them into trees with bullets, but thats not politically correct anymore..

OK,

so the bigger the caliber the higher the tack driving potential. Never fired a hand-carried weapon of larger caliber than 84 millimeter though.

Regards,
/HerrBerg

Power is not the key to driving tacks..
You must be able to HIT the tack to drive it, therefore a "tack driver" refers to an accurate firearm.

Yep, but since the tacks are so small one could benefit from having large bullets

/HerrBerg

Back when I lived in Okla., You didn't have an accurate rifle till you had one that shoot the balls off a gnat's ass @ 100yds.

Herrberg; I have only used my muzzle loaders to drive tacks but have also cut playing cards on edge and cut strings. It is just another fun game to play. derf

If I can hit a gallon milkjug at 50 feet, the rifle is a "tackdriver" to me! Did I mention I'm almost completely blind?

HMMM, i once saw an ad in a gun magazine for a CIA or something revolver. it had a picture of a tack stuck in a piece of plywood with a bullet mark on it. Now that's what I call a "tackdriver"!

Tack Driver just had a better ring to it than Quarter Holer.....