Pitt Bull Posted October 19, 2012 Share Posted October 19, 2012 I just purchased a V-Tac 9mm M&P. I love how the gun shoots. But during an IDPA match last night I had a problem during the reload at slide lock. I know that if you put the magazine in firmly the slide will fall forward. When I seated the magazine the slide would fall forward but not strip the first round out of the fresh magazine. This happend during the reload in all 4 stages I shot. Between stages I went to the range next door and tried to duplicate the malfuntion. It would strip the first catridge. When I would shoot the next stage it would malfunction again. Anyone know why the slide would fall and not strip a new round? Link to comment Share on other sites More sharing options...
Pitt Bull Posted October 19, 2012 Author Share Posted October 19, 2012 I have also tried to reload without having the slide fall automaticlly and it sometimes falls anyway Link to comment Share on other sites More sharing options...
PJones1911 Posted October 19, 2012 Share Posted October 19, 2012 I have 2 M&P Pro's and if I seat the magazine firmly enough, it will drop the slide and strip a round on both of them. I have a friend who is having the same issue that you are having. He was told by Smith that is not a feature but a result in some pistols of slamming the magazine in. I would try setting the magazine without slamming it and then see if it will strip a round when dropping the slide. You could also try a few different magazines like he did. Some magazines would work and others not. Keep in mind that this is not a feature but an oddity. I think it has to do with the timing of when & how the magazine is seated and how hard it is pushed in. I have to slam mine home for it to drop the slide. You can also contact Dan Burwell at Burwell gunsmithing to get his opinion. Link to comment Share on other sites More sharing options...
Sheperd80 Posted October 19, 2012 Share Posted October 19, 2012 The only time ive had this issue is while using high cap mags that are down loaded to 10 rounds. With the extra slack in the mag spring due to down loading, i think the stack of rounds bounces and causes this. Its annoying so for idpa i just use my cali 10 rd mags. In uspsa i almost never go to slide lock so its not a problem. There is a happy medium that works where u can seat the mag hard but not so hard that the rounds bounce. Link to comment Share on other sites More sharing options...
Pitt Bull Posted October 19, 2012 Author Share Posted October 19, 2012 The gun loads fine if place the magazine in normaly. But sometimes during the match and load just a little hard it will fall anyway. Thanks for the advice I will try it and contact Mr. Burwell. Link to comment Share on other sites More sharing options...
Pitt Bull Posted October 19, 2012 Author Share Posted October 19, 2012 This problem happended during an IDPA match so there were only 10 rounds in the magazine. I only had a 1 or 2 rounds in the mag when I was trying do duplicate the malfunction between stages. Link to comment Share on other sites More sharing options...
PingJockey Posted October 19, 2012 Share Posted October 19, 2012 The same thing that causes the slide to release, when "slamming" a magazine home, also can cause a round to fail to chamber. It's called inertia! This is neither an oddity or a feature, as many semi autos will do this. When the mag is slammed in, with enough force, inertia can/will force the slide release to drop, and depending on the spring in the mag, could force the rounds down in the mag, causing the top round to fail to strip. Link to comment Share on other sites More sharing options...
Pitt Bull Posted October 19, 2012 Author Share Posted October 19, 2012 The only problem is the slide falls sometimes when I just firmly seat it. I believe you guys are right in the problem being the malfuntion only occurs when the magazine has 10 rounds in it. I will go to the range and do some testing. Thanks for all the help Link to comment Share on other sites More sharing options...
HotLoad Posted October 19, 2012 Share Posted October 19, 2012 Put the magazine in faster before the slide falls forward. Jeff Link to comment Share on other sites More sharing options...
PingJockey Posted October 19, 2012 Share Posted October 19, 2012 (edited) The only problem is the slide falls sometimes when I just firmly seat it. DO you hold the muzzle up or down when inserting mags? I was trying to type on an Iphone earlier and couldn't really explain what is/was happening. When the magwell is hit firmly enough, inertia allows the slide to move rearward just enough to allow the slide release to fall out of the slot. This will also happen much easier, if the muzzle is pointed up when the weapon is hit or the mag is seated. BTW, you don't even need a mag in the gun to test this. Remove the mag, make sure the gun is clear, and strike the bottom of the magwell. On many guns, this is enough, to allow the slide to move back just enough to drop the release, especially if the muzzle is pointed up. A lot of factors could be at play here....Weaker spring, heavier slide, muzzle pointed up etc, etc. Some guns will do it very easily. I have a new HK P30 and the slide will fall on it almost every time my wife loads a new mag, but I have to really try hard to make it fall. Limp wrist? Who knows... Edited October 19, 2012 by PingJockey Link to comment Share on other sites More sharing options...
J-Rob Posted October 19, 2012 Share Posted October 19, 2012 Maybe you could try pushing up on the slide release during your reload so the slide doesnt auto forward then once the mag is seated then allow the slide to close. Link to comment Share on other sites More sharing options...
Pitt Bull Posted October 20, 2012 Author Share Posted October 20, 2012 I shot this afternoon. The gun will always strip the first round when the mag is full. I will have to see if pointing the gun up has any effect. Gonna try to shoot a match Saturday. Ill try not to smack the mag during reload. Link to comment Share on other sites More sharing options...
GlockCanMan Posted October 20, 2012 Share Posted October 20, 2012 I have noticed that also on my full size M&P's also. I have narrowed it down to level of the gun. If it is straight up and down then it will always strip a round from the mag, but if the gun is tilted to one side (as in tilting it to the right so that you can see the mag well as you load the mag)it will fail to strip a round off about 25% of the time when slamming a mag in. However with my 5" pro it will always strip a round off even if the gun is tilted. That might be because I have a 13lb spring on my pro. Link to comment Share on other sites More sharing options...
RH45 Posted October 21, 2012 Share Posted October 21, 2012 The only problem is the slide falls sometimes when I just firmly seat it. DO you hold the muzzle up or down when inserting mags? I was trying to type on an Iphone earlier and couldn't really explain what is/was happening. When the magwell is hit firmly enough, inertia allows the slide to move rearward just enough to allow the slide release to fall out of the slot. This will also happen much easier, if the muzzle is pointed up when the weapon is hit or the mag is seated. BTW, you don't even need a mag in the gun to test this. Remove the mag, make sure the gun is clear, and strike the bottom of the magwell. On many guns, this is enough, to allow the slide to move back just enough to drop the release, especially if the muzzle is pointed up. A lot of factors could be at play here....Weaker spring, heavier slide, muzzle pointed up etc, etc. Some guns will do it very easily. I have a new HK P30 and the slide will fall on it almost every time my wife loads a new mag, but I have to really try hard to make it fall. Limp wrist? Who knows... You never want to have the muzzle pointed up. You want it pointed at a target, or the berm. Link to comment Share on other sites More sharing options...
Frady Posted October 21, 2012 Share Posted October 21, 2012 I have the same issue. During a match I will slam a mag home and about half the time it chambers a round and the other half it won't. I haven't noticed a pattern yet. It's really annoying if you're in a stage that requires all the rounds in a mag and you eject a live round because you rack the slide just in case and eject a live round. Link to comment Share on other sites More sharing options...
roostershooter Posted October 23, 2012 Share Posted October 23, 2012 Are all of these M&Ps factory / stock or have you made modifications to them? Link to comment Share on other sites More sharing options...
Taylor Murphy Posted October 23, 2012 Share Posted October 23, 2012 I have also found it has a lot to do with the angle with regard to the muzzle that the gun is being held when performing a reload. In my experience the muzzle is slightly up with the grip to slide angle at about 20-30 degrees. I personally have never had to apply what i feel is "too much" force behind my reloads for my M&P Pro to auto forward, at the above angle it auto forwards every time and takes a round with it. Link to comment Share on other sites More sharing options...
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