Moly-coated ammo

yej0001

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Feb 5, 2011
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I just discovered that I have 10 boxes of Blackhill moly-coated 308 (168 and 175 gr) tucked away in an ammo can. I believe I bought them 7-8 years ago. I vaguely remember that it was hotly debate whether moly coating was good or bad for the barrel. Before I shot them in my rifles, I would like to find out what's the scoop. Anyone can help?
 
Re: Moly-coated ammo

Shoot them. Clean as usual...maybe with some mild abrasive...Rem Clean or such...then go back to ruining your barrel faster. (Ho ho ho.) I use HxBN interchangeably with Moly. Clean every 300 to 1000 rounds (guilt trip) as needed. JMHO
 
Re: Moly-coated ammo

Actually, Simple Green cleans out moly fairly well.

I shoot moly coated bullets in my high count p-dog/groundhog rifles. And I clean every 150 rounds or so. Like 'former naval person', mostly its a guilt trip 'cause accuracy is still there.

But I'm switching to hBN as I use up my moly coated bullets.
 
Re: Moly-coated ammo

I read about moly coated bullets ruining the barrel after several hundred rounds (caking up the throat). I guess that's just internet legend then. Hate to waste these blackhill rounds
 
Re: Moly-coated ammo

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: TonyAngel</div><div class="ubbcode-body">Unless I'm mistaken, Berger bullets has a section in their FAQ about prepping a barrel for shooting moly. </div></div>

Found it. Thank you

It recommended to use JB bore cleaner each time, which will raise someone's eyebrows. I have to admit that I do use JB once after several shooting session
 
Re: Moly-coated ammo

As I disremember, the early problems with moly were mostly due to using a spray product named,"Ms Moly". It was sprayed into the bore and resulted in a heavy coating of moly and resin which did hurt grouping. Coating the bullets only leaves a microscopic coating which is not detrimental. Supposedly, however, a "ring" buildup can form in front of the chamber after a huge number of rounds which can be difficult to remove. That is one of the reasons to use HxBN instead; it doesn't build up. Besides HxBN appears cleaner, being white rather than the moly black. JMHO
 
Re: Moly-coated ammo

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: yej0001</div><div class="ubbcode-body">I just discovered that I have 10 boxes of Blackhill moly-coated 308 (168 and 175 gr) tucked away in an ammo can. I believe I bought them 7-8 years ago. I vaguely remember that it was hotly debate whether moly coating was good or bad for the barrel. Before I shot them in my rifles, I would like to find out what's the scoop. Anyone can help? </div></div>
STOP,,, don't shoot them, they may cause serious harm to your rifle, instead send them to me for disposal.
LOL
Just shoot them, and enjoy them. I used to shoot moly in my .223 Varmint rifle and never seen any problems.
SScott
 
Re: Moly-coated ammo

I shot the Black Hills 55 grain .223 moly ammo in my HK-630 sporter with no problems. It liked them and grouped well with that ammo. I did clean the barrel just like normal, which would be after any shooting session. I would shoot it and just make sure to clean your rifle afterward.
 
Re: Moly-coated ammo

hey....when you do your housekeeping on the barrel....don't go ape shit trying to get the moly out......there are legions of shooters that have ruined really really good barrels....custom barrels because they believe what keyboard commandos say on the interweb
 
Re: Moly-coated ammo

Some of the ring buildup problems were from early on. Guys were tumbling their bullets w/moly and getting it on there pretty thick. This is where we heard about the "ring" in front of the chamber.

SMK's have only a microscopic layer of moly and therefore don't leave a lot in my rifles bore. I clean it about every 150 rounds, but don't try to get it spotless. Just give it a brushing and a few wet patches, then finish with Kroil.
 
Re: Moly-coated ammo

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: BigBore56</div><div class="ubbcode-body">Some of the ring buildup problems were from early on. Guys were tumbling their bullets w/moly and getting it on there pretty thick. This is where we heard about the "ring" in front of the chamber.

SMK's have only a microscopic layer of moly and therefore don't leave a lot in my rifles bore. I clean it about every 150 rounds, but don't try to get it spotless. Just give it a brushing and a few wet patches, then finish with Kroil. </div></div>

My balckhill 308 moly were made sometimes between 2003-2004, so I guess they are safe