quote:

Originally posted by butchlambert:

quote:

Originally posted by lockingblock:
The various forms of nitride do some things well but they aren't magic.

It does provide improved corrosion protection and it can prevent things like cleaning rod damage.

It will not prolong your throat life. Dave Tooley did some borescope pics of this. The gist is that it can't alter the melting point of the steel. The crackled look at the throat is happening because the burning propellant is above the melting point of the steel. Add in some friction, carbon getting ground into softened steel...and you get throats that look like a dry lakebed.

They did a bunch of AI barrels on precision rifles and found that there was no meaningful gain in barrel life related to round count. The throat still got chewed up for the same reasons.

It does provide corrosion resistance though...

There were some other pitfalls...things like break in prior to doing it, residue in the bore after having it nitrided (depending on the method used), dimensional shift on some barrels, and so on.

You are wrong.

quote:

Originally posted by lockingblock:

quote:

Originally posted by butchlambert:

quote:

Originally posted by lockingblock:
The various forms of nitride do some things well but they aren't magic.

It does provide improved corrosion protection and it can prevent things like cleaning rod damage.

It will not prolong your throat life. Dave Tooley did some borescope pics of this. The gist is that it can't alter the melting point of the steel. The crackled look at the throat is happening because the burning propellant is above the melting point of the steel. Add in some friction, carbon getting ground into softened steel...and you get throats that look like a dry lakebed.

They did a bunch of AI barrels on precision rifles and found that there was no meaningful gain in barrel life related to round count. The throat still got chewed up for the same reasons.

It does provide corrosion resistance though...

There were some other pitfalls...things like break in prior to doing it, residue in the bore after having it nitrided (depending on the method used), dimensional shift on some barrels, and so on.

You are wrong.

You are wrong.

No, you are wrong.

No, you are wrong.

Do whatever...it's your barrel and money.

I'm correct on the melting point of steel. It doesn't change because you nitride it.

The actual life of a barrel, measured in the volume of time it is exposed to a bullet in the bore, is minuscule. That time is where the damage is going to happen...and it happens first in the throat where the temp gets the highest and stays the longest.

Go ask Frank on the hide. He tried it as well. There is no extension in barrel life overall. It just improves corrosion resistance and similar.

quote:

Originally posted by lockingblock:
From folks who build the best precision rifles on earth and have quantified performance data based on first hand testing and observation...

Dave is who AI uses in North America to chamber their barrels...

I have a couple of melonited barrels on gas guns. They work fine...but it’s not magic.

quote:

Originally posted by lockingblock:
From folks who build the best precision rifles on earth and have quantified performance data based on first hand testing and observation...

Dave is who AI uses in North America to chamber their barrels...

I have a couple of melonited barrels on gas guns. They work fine...but it’s not magic.