I'm over at Ammoman right now looking for some deals and I stumbled across these babies.

40 S/W EXPANDING POINT FMJ BRAND NEW FROM FEDERAL 165GR. LEAD CORE WITH SILICONE TIP BELOW A FULL METAL JACKET GREAT EXPANSION, POSITIVE FEEDING 5 BOX MINIMUM MIX OR MATCH ANYTHING ON THE WEBSITE FOR THE 5 BOX MINIMUM CLICK HERE FOR MORE DETAILS 5 BOXES (MIX OR MATCH) ANY ON WEBSITE FREE SHIPPING Part Number #40-0030, 0040, 0050 $19 BOX (50) WARNING.gif (695 bytes) $165-500 rounds. $299-1000 rounds.

I've never seen nor heard of them before.  Anybody had any experience with them?  Seems like the kindof thing OP would probably like to play with.  I think it's a pretty darn sweet idea, personally.  If it works it kindof defeats the whole hollow points getting jammed up in clothing problem (which, yes, I understand is much less of a problem today).

Damn. Took a look on archive.  It seems this topic has not gone undiscussed before.

tag

Its a great idea that never really worked out the way we would've liked.  Doc Roberts, David Defabio, and Troy have all done proper testing, and all came to the same conclussion.  I believe the pentration and expansion are lacking, and both exceeded by premium JHPs.  However, Marshall has done his own testing, and thinks they are the greatest thing since sliced bread.

If all else fails, ask the Detroit PD about their problems with this load.