to moly or not

bingo1010

bingo1010

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what is everyones thoughts on moly bullets, other than getting a little more speed what are the advantages and disadvantages, barrel life, cleaning ....i want my new barrel to give me max life and am looking at options. thanks all
 
I always use moly. I don't really care about barrel life, but I do like the reduced frequency of cleaning required, and the fact that I can get a few more shots off before the barrel gets too hot.

Perfect for varmint shooting. Doesn't seem to affect accuracy, and I've not observed any impacts to barrel life, better or worse
 
Even with cast boolits, moly seems to work well, we sell quite a few with the dry treatment, the only problem came when we tried undersized bullets and the very slippery moly made them skip the rifling in a Marlin Micro-groove barrel. i tend to push the testing a bit to see if/when things fail.
 
I have been moly coating bullets for years now and shooting but Moly coated bullets out of my rifle.

I use Moly for the fact that I can go over 500 rounds without cleaning and see no change in accuracy.I have gone 650 rounds without cleaning, and my rifle shot as good at 650 as it did at the first round.

I like this consistency....especially when a match is conducted over a weekend............

I find cleaning a LOT easier when I do clean the bore.

With Moly though, you have to clean your bore a certain way or you will remove the Moly from the bore.

SKBY.
 
are there posts about the cleaning procedure? or does everyone have their own special procedure? what about barrel life, are the molys any better or worse? does it take a while for the barrel to " take a set" so to speak and start shooting accurately? what happens if you clean your barrel improperly and clean out the moly? so many questions i know. it isn't that i am new to reloading i am just old school and have never tried the moly thing, forgive me. thanks
 
If you clean the bore out to bare metal it will take a few shots to start grouping again with moly bullets. Some report 2-3 shots, some reports say 20 or so to get the rifle shooting again.
Moly will actually decrease velocity (less friction=less pressure) so you can bump up the load a wee bit to get back up to the velocity or bare bullets.
I am with Skullboy about going longer without cleaning when using moly. I have run a couple hundred more than Skullboy does without cleaning and the rifle shot very well.
 
If you over clean the barrel, the accuracy will suffer until the bore recoats.

I clean by first using a powder solvent. Black patches that go grey after a few run down the pipe. Switch to my ammonia solvent to get rid of any copper (yes, a bore will still copper foul with moly).

The patches may be blue. Clean until the patches go very light blue/no blue and back to grey. You are done.

With a BR quality bore, moly isn't that big an advantage. For a production barrel or one that is rough, it works wonders.

It really doesn't extend your barrel life that much, at least I have never seen any testing that showed increased life.

It does allow you to reach expected velocities in a rough bore, extends your time between cleanings, and once established, makes for a very consistent bore.

Do not put oil onto a molied bore. It will take along time to shoot out.

So, do not use moly in conditions where your barrel might rust ie hunting.

Jerry
 
I have shot moly through my Kreiger barrel since day one.
One buddy that I shoot with runs Kroil on a nylon brush down his barrel every day. About 5 stokes and then dry patches it. He claims there is no shift on POI and make full corrections off his two sighters.
 
i dont suppose doing something like this would help a muzzle loader (traditional muzzle stuffer not an inline) im guessing it wouldent work well with the powder leaving so much junk in the barrel after each shot. the moly wouldent have a chance to get to the barrel.
 
bingo1010 said:
are there posts about the cleaning procedure? or does everyone have their own special procedure? what about barrel life, are the molys any better or worse? does it take a while for the barrel to " take a set" so to speak and start shooting accurately? what happens if you clean your barrel improperly and clean out the moly? so many questions i know. it isn't that i am new to reloading i am just old school and have never tried the moly thing, forgive me. thanks
Click to expand...

For cleaning I use a Shooters Choice/Kroil mix (2 parts SC to 1 part Kroil). This mix doesn't hurt/remove alot of the moly in the bore.I got the recipe from a U.S. Palma Team Shooter a few years back.

You will never get clean white patches when cleaning a Molyed barrel...........if you do, then you have removed all the moly!!!!!!

I run patches only, and stop when there is no trace of blue (copper)...........Kroil will remove copper as well..........

To eliminate the need to shoot several round to re-moly the bore, I run a patch of Hoppes Moly paste down my barrel several times.This leaves the bore with a good coat of Moly.
A local Target Rifle Competitor and Bisley Team member told me about that trick.........;)

Time after time I have hit the range and that first shot I send down range after cleaning goes right where it did the last time I shot.

I don't use moly for the velocity gain people talk about, I use it for the ease of cleaning and the extended period between cleanings you can go without losing accuracy.

SKBY.
 
Wait a minute, I just bought a couple boxes of Hornady Match Moly to try out. I didn't know there was this "moly the barrel" thing to consider. Is there a problem with shooting a couple boxes of moly coated bullets and then back to copper?? Or is it better to go one way or the other and not mix them?

Thanks,
 
I mainly use moly in my 30-06 and then back to either reg. a-maxes or sierras, last weekend I averaged .5moa at 300 yds.(Range limit) or better .416moa. I don't go crazy cleaning my barrel , some #9 some barnes and "lots" of cloth down the tube.
 
Use moly, or have used moly, in my 708, 7BR, 6BR and 308 Sportco. Have seen no decrease in accuracy, without cleaning, out to 100 plus shots, obviously others have measured alot further. This is the main advantage that I can see to using moly just as others have said. Had a fairly complex procedure for cleaning the bore using Kroil and other stuff and holding my crucifix in my left hand and so on. About a year ago I just started using Ed's Red, two or three moist patches followed by one or two clean ones. Bit early to be sure, but no trouble so far. I do take alot of care cleaning the leade and chamber. Little if any adjustment occurs after this kind of cleaning in my 308 where I have done the most testing. Don't know about the copper, obviously others have seen it. Think I'll go back and look. It doesn't surprise me that some might be there. I'm about 400 shots and one match out on the rifle using the Ed's Red procedure. I like the stuff and made a gallon of it. Have seen the adjustment noted after severe cleaning in other rifles as others note here. Also have seen the time it takes the rifle to settle down when you shift from moly to no moly and vice versa. My 708 in which I switched the most took about 8 shots or so to settle down. Haven't noticed any advantage in velocity or accuracy with moly. A small difference might escape me. I have used more powder to get up to original velocity when using moly. DK about barrel life. None of the barrels I have used or am currently using appear to be worn out. I do still see changes in where my bullets cam into the lands while using moly and have no reason to think the changes are slower. Seems to be alot of agreement here on the use of moly. At least what people are saying sure agrees with what I have seen.
 
So far, I have avoided the use of moly and, since my rifles are shooting ok, will probably keep on the way I am. Regards, Bill.
 
i tried some moly out in my gaillard 6br barrel out yesterday, only thing i noticed was decreased accuracy, my groups grew to about .8" versus the regular scenars i was running which were at least .4" 5 shot groups. on monday i plan to order some more regular scenars.. i kept all the other parameters the same, 30.2 varget .020 into the lands
 
marlin1895gs said:
i kept all the other parameters the same, 30.2 varget .020 into the lands
Click to expand...

There's your problem. You'd need to add an extra .5 to 1.5 grains of powder to maintain the velocities you got with uncoated bullets

Any time you change any component, you need to re-work up your loads. This is true of primers, brass, moly, bullets, etc.
 
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