Moly plating vs moly coating

[rimfiremac]

I've been moly plating using the wet system- a water/moly solution in anold powder bottle, toss it in the vibratory tumbler overnight, then dry and polish bullets. Messy, but the final product is amazingly slick and looks good too. I run it in two barrels.

I've recently started HBn coating using the dry vibratory method- 2 hrs in an old powder bottle in the vibratory tumbler with dry 70nm hbn powder, polish and go. I haven't fired any of these yet in a dedicated barrel, which is chambered with the exact same reamer as one of the moly barrels. At first glance, I'm not as impressed with the coating process.

The argument that I'll test is that wet moly plating is effective and not detrimental to the barrel as some previous methods of moly coating may have been. My goals are consistent cold bore accuracy and exteneded bore life.

Does anyone have opinions from trying both methods?

 

[mikegaiz]

I have shot molly since the early 80's, old and now wet process in every thing except competition. It will definitely add barrel life and have good accuracy, however works best for heavy shooting (more than 15 shots) to condition the barrel. I think that a coating wears off as it goes down the barrel. I feel the new wet process which is not a coating but a bonded chemical reaction penetrates the bullet jacket last and is far better. have older guns with literally thousands of rounds and still shoot good. A 243 shot only molly and ball powder with 4000 rounds and still shoots under 1 in. at 100 yds.