Pump mag chops a lot

Seymour · 01-30-2012, 01:24 PM

So my pump mag has recently started chopping...A lot. It fires the first couple shots fine, then it starts breaking every single ball till I clean the barrel. Then it fires a couple shots fine and starts breaking every ball till the barrel gets cleaned. Rinse and repeat. It happens with various barrels, and both a Revvy and Halo. Any ideas?

Spider! · 01-30-2012, 01:59 PM

What kind of body? For a detent problem it sounds like it would have to be a ULE body (with the different barrels).

I have had detent problems with plain gravity hopper and twistlock wire detent before. It's really "stupid" to see a ball roll out of a mag like that. Egg shaped balls are sneaky like that.

Seymour · 01-30-2012, 02:57 PM

It is indeed a ULE body. I think the detent is good still though.

Ando · 01-30-2012, 04:16 PM

Might have the detents set too far inside the body.

Spider! · 01-30-2012, 04:28 PM

Or a good detent not in far enough for small paint. ULE detents don't have a lot of extra play in them, imo.

Sometimes the detent can be sticky. It looks and fits fine, but it sticks and doesn't go back (reset) quick enough.

One other thing I have often suspected is little paint with a foamie bolt that is missing the foamie, so that the first ball rolls back into the bolt face and the next ball sits down too far in front. That's for big messes in the hopper. The weak detent shows up with more barrel breaks and multi-shots.

Seymour · 01-30-2012, 04:49 PM

It very well may have been a dirty detent. I pulled it out, and it was filthy and gummed up. Its much better now. No air to test it though. I also screwed it in a little further. The bolt I have is a long nose Level 7 so I dont think roll backs are a problem.

Spider! · 01-30-2012, 05:07 PM

Quote:

Originally Posted by Seymour

I also screwed it in a little further.

Be careful with that. Ando has a point there for the ball and it can also drag the bolt (and the detent gets torn up).

Once you get it where you like it, put a dab of nail polish or paint that touches the body and the detent. That way you can look at it and see that it hasn't moved, since they don't sit still when you check the thread tightness by feel. They all actually last pretty well if you keep them clean and set.

Seymour · 01-30-2012, 05:12 PM

^Alright Ill check it and make sure its still good.

01-30-2012, 01:24 PM	#1 (permalink)
Seymour Post Whore Join Date: Dec 2010	Pump mag chops a lot So my pump mag has recently started chopping...A lot. It fires the first couple shots fine, then it starts breaking every single ball till I clean the barrel. Then it fires a couple shots fine and starts breaking every ball till the barrel gets cleaned. Rinse and repeat. It happens with various barrels, and both a Revvy and Halo. Any ideas? __________________ My feedback! http://www.mcarterbrown.com/forums/f...ml#post1615517 http://www.x7og.net/feedback-b-s-t/2...-feedback.html

01-30-2012, 01:59 PM	#2 (permalink)
Spider! MCB Member Join Date: Dec 2008 Location: Houston, TX	What kind of body? For a detent problem it sounds like it would have to be a ULE body (with the different barrels). I have had detent problems with plain gravity hopper and twistlock wire detent before. It's really "stupid" to see a ball roll out of a mag like that. Egg shaped balls are sneaky like that. __________________ My Feedback

01-30-2012, 02:57 PM	#3 (permalink)
Seymour Post Whore Join Date: Dec 2010	It is indeed a ULE body. I think the detent is good still though. __________________ My feedback! http://www.mcarterbrown.com/forums/f...ml#post1615517 http://www.x7og.net/feedback-b-s-t/2...-feedback.html

01-30-2012, 04:16 PM	#4 (permalink)
Ando Formerly known as DMex Join Date: Jul 2009 Location: Glen Burnie, MD.	Might have the detents set too far inside the body. __________________ WTB NOXX Tac1 Springfeed and Javelin Twister Barrel...PM Me!!!

01-30-2012, 04:28 PM	#5 (permalink)
Spider! MCB Member Join Date: Dec 2008 Location: Houston, TX	Or a good detent not in far enough for small paint. ULE detents don't have a lot of extra play in them, imo. Sometimes the detent can be sticky. It looks and fits fine, but it sticks and doesn't go back (reset) quick enough. One other thing I have often suspected is little paint with a foamie bolt that is missing the foamie, so that the first ball rolls back into the bolt face and the next ball sits down too far in front. That's for big messes in the hopper. The weak detent shows up with more barrel breaks and multi-shots. __________________ My Feedback

01-30-2012, 04:49 PM	#6 (permalink)
Seymour Post Whore Join Date: Dec 2010	It very well may have been a dirty detent. I pulled it out, and it was filthy and gummed up. Its much better now. No air to test it though. I also screwed it in a little further. The bolt I have is a long nose Level 7 so I dont think roll backs are a problem. __________________ My feedback! http://www.mcarterbrown.com/forums/f...ml#post1615517 http://www.x7og.net/feedback-b-s-t/2...-feedback.html

01-30-2012, 05:12 PM	#8 (permalink)
Seymour Post Whore Join Date: Dec 2010	^Alright Ill check it and make sure its still good. __________________ My feedback! http://www.mcarterbrown.com/forums/f...ml#post1615517 http://www.x7og.net/feedback-b-s-t/2...-feedback.html

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