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Moly-Coated or Standard? #88753 06/30/2011 4:41 PM
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tkirk2010 Offline OP
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Allright....all you experienced roll-your-own specialist....has anyone found distict advantages/disadvantages of utilizing moly-coated projectiles? I am currently loading standard Sierra 165 grain BTHP.308 projectiles, and utilizing 52 grains of IMR4350 to charge each case. My chrony gives me a ten shot average of 2,755 fps, and I am currently shooting benchrest groups of 1/2" MOA at 100 yds. Sierra makes the identical 165 gr BTHP with the moly coating, and I was just curious if utilizing this variant would be even better? I would assume that one would experience less barrel wear, but what about CUP Pressures? What about velocity? Help me out!

Re: Moly-Coated or Standard? [Re: tkirk2010] #88754 06/30/2011 4:52 PM
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rickiesrevenge Offline
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Using the same charge pressures will be lower and so will the velocities. I have heard about guys getting moisture trapped under the moly and it pitting their barrels. I can't say for sure if it will do that or not. I quit using moly bullets quite a while ago.

Re: Moly-Coated or Standard? [Re: rickiesrevenge] #88756 06/30/2011 5:17 PM
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Dave Tarbell Offline
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Ive heard the sme as above,if you have a 1/2 inch load I think Idcall it good right there,happily.


Dave Tarbell
Re: Moly-Coated or Standard? [Re: Dave Tarbell] #88763 06/30/2011 8:56 PM
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wapitirod Offline
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I talked to the guys at Nosler about this several years ago because they were changing over from moly to lubalox for the reasons stated above as well as the moly is extremely difficult to remove from the barrel. The lubalox has the same benefits without the drawbacks of the molybdenum based products.


I won't be wronged. I won't be insulted. I won't be laid a-hand on. I don't do these things to other people, and I require the same from them. John Wayne-The Shootist


Re: Moly-Coated or Standard? [Re: wapitirod] #88798 07/02/2011 12:06 PM
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phonejack Offline
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back in the late 90's I istened to kevin thomas of sierra bullets say that he would never run a moly bullet thru any of his barrels. that stopped my interest in changing over to moly.

Re: Moly-Coated or Standard? [Re: phonejack] #88800 07/02/2011 2:54 PM
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johnwilliams Offline
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I've used Hornady 50gr. bullets moly/standard in my .22-250 and noticed the pressure is lower with the moly.I never chrono'd the moly,I just assumed the moly coating reduced friction,hence the lower pressure/my standard bullets chrono 3800+.Interesting!


H.H.I.#8190 Colossians 1:17 And He is before all things,and by Him all things consist!
Re: Moly-Coated or Standard? [Re: johnwilliams] #88805 07/02/2011 3:50 PM
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wapitirod Offline
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 Originally Posted By: johnwilliams
I've used Hornady 50gr. bullets moly/standard in my .22-250 and noticed the pressure is lower with the moly.I never chrono'd the moly,I just assumed the moly coating reduced friction,hence the lower pressure/my standard bullets chrono 3800+.Interesting!


they do reduce pressure and and can increase velocity but it's whether the negatives out weigh the positives which I believe they do.


I won't be wronged. I won't be insulted. I won't be laid a-hand on. I don't do these things to other people, and I require the same from them. John Wayne-The Shootist


Re: Moly-Coated or Standard? [Re: wapitirod] #88807 07/02/2011 4:55 PM
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Ernie Offline
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I k now guys who strictly shoot moly and those who never do , and both are very successful.


Ernie the Un-Tactical
Re: Moly-Coated or Standard? [Re: Ernie] #88809 07/02/2011 6:29 PM
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wapitirod Offline
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are any manufacturers actually using molybdenum anymore or have they all gone to Lubalox? I know Nosler/Combined Technologies (Winchester) are using Lubalox but I don't know about the rest of the companies. You can't tell the difference to look at them they still have the black color and some guys don't know the difference so they just call it moly.

Last edited by wapitirod; 07/02/2011 6:30 PM.

I won't be wronged. I won't be insulted. I won't be laid a-hand on. I don't do these things to other people, and I require the same from them. John Wayne-The Shootist



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