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Bolt & operating rod wear


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#1 brucea4

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Posted 15 April 2019 - 10:12 AM

I have read in the M60 Civilian Owners Guide which has lots of pretty interesting information on the M60 that most of the wear & damage occurs when the bolts slams home on an empty chamber.  I would assume it is a design flaw?  They suggest not completely firing the belt off and leaving a few rounds so the bolt never slams forward on an empty chamber.  Any experience on this type of wear & damage?


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#2 BillyDixon

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Posted 15 April 2019 - 03:38 PM

i always put a dummy round  as last round in belt it cushions thebolt op rod slam on empty chamber that causes a lot of wear on bolt and op rod cam surfaces, this subject has been covered in great detail on many web sites just sayn..


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#3 brucea4

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Posted 15 April 2019 - 07:04 PM

My 60 is in NFA jail so I'm checking up on things and gathering information.  Putting a dummy round on the last link of the belt was my thought also....


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#4 StrangeRanger

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Posted 16 April 2019 - 07:19 AM

Empties don't always feed well and Murphy says that bulleted dummies can get mixed in with the real thing.  I use a single blank as the last round in each belt, works 100%


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#5 brucea4

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Posted 16 April 2019 - 11:18 AM

I intended to mark the dummy round with a magic marker to avoid that issue.


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#6 Normal1959

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Posted 16 April 2019 - 07:11 PM

My test belt on my Vespa scooter.

Eric

 

 

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#7 brucea4

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Posted 17 April 2019 - 10:30 AM

My test belt on my Vespa scooter.

Eric

Test belt?


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#8 Normal1959

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Posted 17 April 2019 - 02:49 PM

My test belt on my Vespa scooter.

Eric

Test belt?

 

 

Yes, after cleaning and assembly I cycle a few dummy rounds.

Eric


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#9 brucea4

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Posted 17 April 2019 - 03:07 PM

 

My test belt on my Vespa scooter.

Eric

Test belt?

 

Yes, after cleaning and assembly I cycle a few dummy rounds.

Eric

Oh, got you now....


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#10 brucea4

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Posted 17 April 2019 - 03:09 PM

I do not reload and I don't like the idea of a blank as the last cartridge on the belt as I feel that will just dirty up the barrel faster.  Any decent dummy rounds out on the market that are robust and can last a while being slammed in and out of the gun?


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#11 StrangeRanger

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Posted 17 April 2019 - 04:53 PM

One blank after 99 live rounds is not going to be appreciably dirtier than 100 live rounds


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#12 brucea4

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Posted 17 April 2019 - 05:00 PM

One blank after 99 live rounds is not going to be appreciably dirtier than 100 live rounds

You might have a point there.....


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#13 DINK

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Posted 18 April 2019 - 05:53 AM

The nice thing about using GI blanks is that they can be re-used.  The "pop" as they go off isn't needed, so even after they have been through the gun a few times, they still work.  If they get beat up, toss them and put in a fresh one.  I have a huge supply of .308 blanks at the gun store where I work.  People thought they would be cool to "requisition" as souvenirs when they were in the service, but after a few years it turns into "What am I keeping these for?" and they show up at the store wanting us to get rid of the blanks for them.  I'm happy to accommodate them!


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#14 MGTedFL

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Posted 04 May 2019 - 12:55 PM

I always finish my belts with a LC blank.


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#15 mattnh

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Posted 19 May 2019 - 03:26 PM

A LC blank at the end for me, too...


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#16 BPinFL

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Posted 20 May 2019 - 06:13 AM

I use a solid aluminum dummy cartridge/ snap cap.  Its Red and highly visible!


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