• Failure to Feed is used as a generic term and is not specific enough to be helpful in solving issues.

      • Many components can cause malfunctions, in order to Diagnose and solve issues related to nose dives "Double feed" stove pipe, partial slide closing, ammunition / magazines/ gun extractors / ejectors, feed ramps, reloading and slide overlap timing we have broken down helpful information below be review this may help you quickly resolve any issues


Ammunition and loaders are a major cause of issues and often customers are reluctant to even consider it. Please check your ammo is to our recommendation, if reloading and primers are seating flush or below the brass case.

FYI: when running the max OAL run 100 of your press and randomly measure 15-20 to check OAL from press is at or below max.

We have taken the time to put together these 10 solutions & explanations of the various factors that can lead to perceived magazine issues.

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1.	For all MBX tubes and recommend for any factory tubes 9mm crimp .372 -.374 OAL 1.145 -1.155
2.	For MBX 2011 tubes 9mm 1.145-1.170
3.	MBX tubes CZ /Canik/ Beretta crimp .372-.374 OAL reloads 1.145-1.155 preferably all factor should be fine
4.	9mm ejectors should be EX long in 2011 and be sure the ejector is not contacting the top round in the magazine causing the round to be pushed down this can occur with Glocks that use some aftermarket mag catches that raise magazine in grip
5.	MBX .38 super comp start at 1.225 extend out as required max OAL will be around 1.245-1.250. MBX tubes are made form thicker steel and tighter upper radius to help aline for flawless feeding and the inside of the tube has a little less room so depending on bullet nose profile the bulletin nose can rub and cause the rounds to stay low and feed into the ramp so shorten if needed (if you wish to purchase and not reload Eley factory .38 SC ammunition works great in MBX)
6.	CRIMP very important, so often overlooked and specs changed due to "range warriors" secret specs news flash! magazines are designed to work with factory crimp this is critical to performance and reliability since the reduction side angles and internal dimensions of the mag are set to feed off the crimp section use a factory spec crimp ref to (Sami specs) for your caliber when reloading. FYI also weak crimp can allow bullet to move back into the case when contacting feed ramp absorbing the energy out the slide causing the round to stop on the ramp or partly in chamber and slide to not close completely.
7.	RELOADS Primer hight on reloads and fired brass often can be not seated below the rim and sit high causing OAL to increase and potential for the nose of the round to contact and bind in the tube causing slow to rise bullets in the magazine just 1 round with a high primer can upset the entire magazines ability to present the rounds fast enough, due to a high primer the rear of the bullet case has now moved forward upsetting extractor hook contact with the rim this tensions can jam the slide open with the round at a 45 deg angle or cause the slide Not to close shut.
8.	SLIDE OVERLAP / short stroking is a term we use that relates to distance the slide go's past the rear of the bullet in the magazine this distance/time much like a intake valve in a motor engine allows for the bullet to rise up into the feed lips this can be dependent on a few factors bullet power factor / recoil spring weight / compensators and grip slide riding if this time the rear of the bullet is giving to raise into the lips and be ready to be scooped once the slide changes direction is reduced the slide will catch the round on the top of the rim causing either a 3 point bullet at 45 deg jam or nose into feed ramp.
9.	STOVE PIPE as it's know is a failure to eject and is not a magazine issue it can be extractor being too loose chipped or broken/ejector being short, broken and lastly slide speed needs to be stable rearward so loads need to be "hot" enough to get the slide speed up or recoil spring needs to be reduced to help slide move easier/faster back with less rearward force after barrel unlocking.
10.	The Double feed! In a MBX 2011/ 1911 magazine this is impossibly period! 2 rounds cannot be striped from a magazine with one forward liner motion at the same time the design of the MBX magazine front and steel tube stops the second round moving forward. So what's happening? 1) failure to extract and leaving a fired brass case in the chamber with a live round now stuck behind the fired case in the chamber (clearly and extractor issue). 2) failure to chamber the round completely and the operator draws the slide rearward allowing for a new round to raise up and sit behind the live round .3 If a fired case is left in the chamber and live round behind that would be a failure to extract from chamber so the Extractor should be replaced or adjusted also inspect chamber for damage or debris.