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50 Round Drum Question


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#1 Guest_title ii_*

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Posted 15 December 2015 - 10:44 PM

Can anyone tell me if this 50 round drum is the same that was imported from china that runs good out of the box w/grease?

http://www.gunbroker...?Item=520418429

Is it the same as this drum that others have said runs good out of the box w/grease? 

http://www.keepshoot...m-magazine.html

 

Thank you in advance!


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#2 mnshooter

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Posted 15 December 2015 - 11:38 PM

As it's obvious from the photos that they are not the same, I'm not sure what you're asking.

But, the one from Keepshooting is the one you want.

Edited by mnshooter, 15 December 2015 - 11:38 PM.

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#3 Guest_title ii_*

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Posted 15 December 2015 - 11:48 PM

Does anyone have any experience with the ones for sale on gunbroker? While the photos look different wasn't this the company that had a trademark issue? Basically I want to know if the ones for sale on GB are worth it?
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#4 Chief762

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Posted 16 December 2015 - 12:39 PM

I believe they are both the Taiwanese repro Crosby drums. That said, I got mine from Keep Shooting. They come ungreased, but once serviced up, they work great. Stay away from the modern Auto Ordnance ones, though. They suck.

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#5 m60mgman

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Posted 16 December 2015 - 01:34 PM

I got one from Numrich and it appears to be like the Crosby copy but unmarked, made in Taiwan. I had to tweak the bullet guide inside so it wouldn't rub the rotor.

I like my Bridgeport better, of course. The metal is stiffer and it's made in the USA, about 70 years ago.

Function? I'll be able to comment on when my 21 comes in.
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#6 Guest_title ii_*

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Posted 16 December 2015 - 04:07 PM

How easy was it to tweak the bullet guide inside so it wouldn't rub the rotor? Perhaps do you have photos of the before and after?

Is this a job for the drum specialist or can one do it with basic tools?


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#7 Uncle Dudley

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Posted 16 December 2015 - 09:24 PM

To "tweak the bullet guide rails", just slide a cartridge along the rails and if you feel a slightly tight spot, you can usually move or wiggle the cartridge side to side and slightly move the rail for clearance.  I don't think there would be any interference with the rotor, usually it's a tight spot in the rails.  It's really that simple for a minor tight spot.  My "Taiwan Crosby" drums were fine, but I did have some tweaking to do on the West Hurley "L" drum I bought.  I much prefer the quality of the Taiwan Crosby drum.  I have 6 of the Taiwan drums, 5 work perfect and the 6th is still in the box, unfired.

 

U D


Edited by Uncle Dudley, 16 December 2015 - 09:25 PM.

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#8 MG08

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Posted 16 December 2015 - 10:05 PM

I picked up one of the new "Crosby" marked drums, found it for $106 delivered. Came in the box.  Seems to work just fine, I have not really wrung it out, but it fits and shoots. I am using it in WWII FA guns.


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#9 m60mgman

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Posted 17 December 2015 - 01:22 AM

How easy was it to tweak the bullet guide inside so it wouldn't rub the rotor? Perhaps do you have photos of the before and after?
Is this a job for the drum specialist or can one do it with basic tools?

The guide I'm talking about is the one riveted near the opening at the top. It's really a ramp to get the cartridge to the opening.

The rotor had some wobble and the rub was significant. I slightly squished it carefully with some flat tipped pliers. You have to be careful. It did the trick and no more rubbing is happening.
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#10 Motorcar

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Posted 17 December 2015 - 10:38 AM

Keepshooting.com has been out of stock for quite some time now. The Sportsman's guide has them still as of today.. http://www.sportsman...m-mag?a=1784608

 

I have several from Keepshooting and they run fine.


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#11 Guest_title ii_*

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Posted 18 December 2015 - 11:44 PM

Thanks to all for the replies and advice
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#12 mnshooter

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Posted 19 December 2015 - 08:42 AM

Keepshooting.com has been out of stock for quite some time now. The Sportsman's guide has them still as of today.. http://www.sportsman...m-mag?a=1784608
 
I have several from Keepshooting and they run fine.

I guess the photographer who did the famous 2004 H&K catalog cover -with the cartridge backwards in the magazine, is still in business.

Edited by mnshooter, 19 December 2015 - 08:46 AM.

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#13 Guest_title ii_*

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Posted 20 December 2015 - 11:14 AM

Ok what kind of grease is recommended? Something that can be purchased at the local hardware store? Thanks
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#14 mnshooter

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Posted 20 December 2015 - 09:49 PM

Ok what kind of grease is recommended? Something that can be purchased at the local hardware store? Thanks

The tricky part is getting the grease into the right places. There is a greasing tool just for that.
Sometimes they are offered for sale on this board; they work with a standard grease gun.
A couple of years back Deerslayer Dan was loaning his greasing tool in exchange for a board donation.
Not sure if he is still doing that, but you could ask him.
Dan would also be able to tell you what grease to use.

Edited by mnshooter, 20 December 2015 - 09:50 PM.

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#15 Mk VII

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Posted 21 December 2015 - 06:46 PM

I made a poor man's version which I've still got here. 

 

standard.jpg


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#16 darrylta

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Posted 21 December 2015 - 09:11 PM

I made one out a simple 1" steel pipe plug. Drilled and tapped the side for

a zerk fitting and ground a flat spot on the top of plug for C clamp bearing

and used some leather scraps for gaskets All in all the cost was around 5 bucks.

 

What I discovered the hard way, is the route the grease travels is between the body of the

rotor and the spindle. If your doing a vintage drum, this interface is full of hardened

grime and grit that greatly impedes the grease flow. It's always best to clean this area

and soak it with penetrating oil before attempting to grease it.

 

FWIW,

Darryl


Edited by darrylta, 21 December 2015 - 09:13 PM.

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#17 Guest_title ii_*

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Posted 21 December 2015 - 10:07 PM

Thank you! What about the specific brand of grease to use/purchase?
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#18 Uncle Dudley

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Posted 21 December 2015 - 10:16 PM

http://www.machinegunboards.com/forums/index.php?showtopic=15476&hl=%2Bdrum+%2Bgreaser#entry128782
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#19 Guest_title ii_*

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Posted 22 December 2015 - 09:06 AM

Thank you for this thread!
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#20 buzz

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Posted 22 December 2015 - 10:22 AM

I made a grease fitting out of a 1" steel pipe plug as well

 

I used the side of a grinding wheel to make the face of the cap nice and flat so it would get a good seal with the gasket

 

Instead of drilling and tapping for the grease fitting, I just drilled a hole slightly larger than the thread and glued the fitting in place with JB Weld.

 

Works fine


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