The best comparison I can give you is for tests with the P32 compared to Goldenloki. Attached, I hope, is a chart showing comparisons for .32cal JHP. It looks like a "correctly made" wet pack gets about 3/4 penetration of gelatin (75%), while expansion is close to the same.

A "properly made" wet pack uses only the black print paper, all slick ads removed, no magazines, soaked loose in a tub overnight, then placed in a cardboard box the next morning just before going to the range,box about the same size as papers, not packed too tight. About 9" thick needed for most JHP's. OK to use duct tape to hold it together at the top and bottom end.The wet pack needs to be used withing an hour or so before too much water drains out and it gets dry.

Some use phone books. Whatever. I don't trust phone books but a famous gun (zone) writer told us on the other site we were all stupid, etc., and phone books in sea water were the way to go. Of course that guy tells everybody they're stupid.

Keep in mind all, this ain't no FBI approved test. So I'll not publish any of my results as "scientific". Thanks for the thought.

og