Home Forums Reloading Big Game Rifles Any evidence that Moly helps with throat errosion

Has aynone on this forum ever seen or expeienced "reduced throat errosion rate" due to shooting Moly coated bullets ?

Ive got one rifle, a 240 Gibbs, thats a barrel burner for sure. I've been coating all the bullets for it with moly, not really for velocity or group improvements but on the hope that it would slow down the throat errosion some. At the time it seemed "Logical" that it probably would. A little bit of moly applied to the throat with every shot would give a coating that the flame would need to burn through before getting to the metal. Sounded logical to me at the time. Now I'm haveing second thought's.

So has anyone ever seen real evidence of this actually occuring?

I'm not aware of a single piece of scientific evidence on the vicissitudes of moly in firearms. A lot of opinion out there though.

That said, I've mollied barrels and slugs for three of my whizzum Weatherby's. In the first case (257) it rectified a rapid fouling issue. The other two I did from the get go.

The moly layer in a firearm is probably only a micron or so thick. I doubt that is sufficient to extend throat life. Just an opinion though.

I've shot nothing but moly PLATED, not coated, bullets for years. Sprayed, dipped, coated, or any other process that does not impact plate the moly into the bullets jacket, is not the same process.

With that said, I've never seen any signs of extended throat/barrel life shooting moly.

For me, the advantage is to shoot longer, without cleaning, with no loss in accuracy. Nothing more, nothing less. And when it is time, cleanup is a breeze.

The bullet is not the culprit in throat erosion. Heat, pressure and powder abrasion are. mtmuley

And rate of fire....