Author Topic: 17 Remington-Moly or NO-Moly?  (Read 638 times)

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Offline bspeckchaser

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17 Remington-Moly or NO-Moly?
« on: August 23, 2007, 03:37:02 PM »
Just started working with a new 14" bull barrel in 17 Remington.  Recent conversations have left me uncertain on which way to go with this new project.  If any of you have been shooting this caliber, please give me your thoughts regarding the use of Moly or just regular copper jacket HP's.  Plan to shoot 25 grain pills.

Thanks in advance!

Offline KN

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Re: 17 Remington-Moly or NO-Moly?
« Reply #1 on: August 24, 2007, 01:38:43 PM »
In my opinion there are no advantages to molly that out weigh the disadvantages. Harder to clean vrs clean more often. Molly is known to attract moisture. Molly build up can cause pressure/chambering problems. And I have never seen a published article where molly out shot non molly in accuracy. A good barrel will go 200-300 rounds between cleaning so I don't see any point.

Offline jhalcott

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Re: 17 Remington-Moly or NO-Moly?
« Reply #2 on: August 25, 2007, 05:43:05 AM »
  My .17 rem is a rifle. I do not think moly will be much help IF any. I tried it in a couple larger calibers (6 & 7mm) and did not find it to help. You have to "season" the bore before any improvements show up. By that time you have to clean the bore and start all over again. I did loose a few FPS when I started using moly, after I increased powder charges a couple tenths of a grain ,I got back the lost FPS. But that put me on the edge of MAX loads. Accuracy was not all that great with moly either,I was getting the same size groups with out it!?

Offline Catfish

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Re: 17 Remington-Moly or NO-Moly?
« Reply #3 on: August 25, 2007, 07:35:11 AM »
My first .17 cal. was a 700 Rem. in .17 Rem. I started out shooting Molly coated bullets in it and I did put alot of them down the tube before the Molly build up ruined my accuracy. I spent 8 to 10 hrs. cleaning to get my accuracy back. Like a fool I shot another 10 rounds of Molly bullets through it. After over 24 hrs., not all at one time, I could not get it to shoot. I finely fire lapped it as a last resort  and got it to shoot again. I will never shoot another Molly coated bullet in any of my guns. Besides they can also cause the bore to rust.

Offline Steve P

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Re: 17 Remington-Moly or NO-Moly?
« Reply #4 on: August 27, 2007, 09:30:06 AM »
Another vote for NO moly.

Steve :)
"Life is a play before an audience of One.  When your play is over, will your audience stand and applaude, or stay seated and cry?"  SP 2002

Offline blhof

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Re: 17 Remington-Moly or NO-Moly?
« Reply #5 on: August 28, 2007, 11:35:05 AM »
There is a treatment process from the Trueoil people that is called Molycote.  It is a moly ion mix that becomes part of the metal.  I used it on one of my Dan Wesson barrels and gained 75fps with the same ammo I had used before the treatment.  It sure made cleanup a lot easier, as the lead and copper residue seems a lot easier to get off.  Go to the Truoil website and read about it.  Do not use it in chambers or slide areas as it reduces friction to a point that revolver shells slam back when fired and slides wear from increased impact due to reduced resistance, otherwise it performs as advertised; at least for me.