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1/14/2009 7:02:16 PM EDT
Let the debate begin.. I am new to reloading and am debating on moly bullets but I have been told to definately stay away from them.  I am wanting to use them in RRA varminter.  I am wanting more opinions on why not to use or why I should use them.
1/14/2009 7:10:06 PM EDT
[#1]
Why pay the extra?

If you're looking to eek out the last bit of a 300-500 yard bullet, then maybe but standard copper jacket will do just as good by tweaking the powders.
1/14/2009 7:17:09 PM EDT
[#2]
The reason I am asking is because I have just come across a closeout sale on them for 21.00 a hundred.  Outside of that I wouldnt be asking.  I have heard though that once you run them through your gun that it leaves a coating behind in the barrel that you cant get out and that regular bullets will not work the same in there again.  I am looking for experience from others.
1/14/2009 8:07:56 PM EDT
[#3]
Quoted:
The reason I am asking is because I have just come across a closeout sale on them for 21.00 a hundred.  Outside of that I wouldnt be asking.  I have heard though that once you run them through your gun that it leaves a coating behind in the barrel that you cant get out and that regular bullets will not work the same in there again.  I am looking for experience from others.


Not true.  It will come out easily with Pro Shot Copper Solvent IV.  For regular bullets, it will tend to reduce velocity because it reduces bullet pull which delays full ignition as the pressure drops faster.  With increased powder, lost velocity can be regained.

Now for bullets with pure copper jackets, it is a LIFESAVER.  Why?  Because it greatly extends the number of shots between cleanings.  With regular gilding metal jackets, the 5% Zn in the sloughed-off jacket material vaporizes with each shot, causing the bulk of the Cu to "pop off" the bore and exit as a fine dust, keeping the bore relatively clean.  But without the Zn,  pure Cu bullets like Barnes and Swift will foul terribly, hence the XLC coating and special cleaners.

Even on 95%Cu, 5%Zn  bullets, moly can greatly prolong accuracy between cleanings BUT if the residue is completely cleaned, it will take a few shots to get accuracy back as the velocity will change until the bore stabilizes.  If such a conditioned bore is then shot with naked bullets, there will be changing velocity until the bore is stablized again.
1/14/2009 11:24:46 PM EDT
[#4]
Switching back and forth, it take me about 8 to 10 shots without cleaning the moly out, for the barrel to settle down, then aboth the same to go back.
Did it with plinking loads, mollied and un-mollied.
'Borg
1/15/2009 6:48:47 AM EDT
[#5]
Quoted:
Quoted:
The reason I am asking is because I have just come across a closeout sale on them for 21.00 a hundred.  Outside of that I wouldnt be asking.  I have heard though that once you run them through your gun that it leaves a coating behind in the barrel that you cant get out and that regular bullets will not work the same in there again.  I am looking for experience from others.


Not true.  It will come out easily with Pro Shot Copper Solvent IV.  For regular bullets, it will tend to reduce velocity because it reduces bullet pull which delays full ignition as the pressure drops faster.  With increased powder, lost velocity can be regained.

Now for bullets with pure copper jackets, it is a LIFESAVER.  Why?  Because it greatly extends the number of shots between cleanings.  With regular gilding metal jackets, the 5% Zn in the sloughed-off jacket material vaporizes with each shot, causing the bulk of the Cu to "pop off" the bore and exit as a fine dust, keeping the bore relatively clean.  But without the Zn,  pure Cu bullets like Barnes and Swift will foul terribly, hence the XLC coating and special cleaners.

Even on 95%Cu, 5%Zn  bullets, moly can greatly prolong accuracy between cleanings BUT if the residue is completely cleaned, it will take a few shots to get accuracy back as the velocity will change until the bore stabilizes.  If such a conditioned bore is then shot with naked bullets, there will be changing velocity until the bore is stablized again.


Exactly right, Keith.  I use Molybdenum Disulfide coated bullets exclusively for my hyper-velocity guns, such as my .220 Swifts and my .22-6mm AI, to slow down throat erosion.  I use them with no other gun, because I have not personally witnessed the benefits in any of my other guns, and, in my opinion, the .223 is not burning enough powder for my guns to benefit from moly.  The method I use to clean the moly out is by using Kroil and JB Bore cleaning compound.
1/15/2009 8:38:13 AM EDT
[#6]
Quoted:
The reason I am asking is because I have just come across a closeout sale on them for 21.00 a hundred.  Outside of that I wouldnt be asking.  I have heard though that once you run them through your gun that it leaves a coating behind in the barrel that you cant get out and that regular bullets will not work the same in there again.  I am looking for experience from others.


I would say in this case you have to judge whether the cost savings is worthwhile and whether you can buy enough coated bullets to make the aggravation for the switch back to bare worthwhile.  $21 is not a terribly large savings over the cost of most bare bullets, if any.

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