burkdog

No, I didn't call Tom yet. I honestly didn't know what to expect from the gun. I've bought a few pistols that jammed a lot for the first couple hundred rounds, but then ran flawlessly. I was thinking there was some break-in process I needed to go through with the heavy loads like the manual says. Update, though... I think there may be a problem with the trigger. I started reading through the manual tonight and came to the Function test part: 1. Start with the shotgun fully assembled 2. Depress cartridge drop lever and pull the bolt completely to the rear. The bold should lock open. 3. Put the manual safety in the "ON" or "SAFE" position by pushing it from the left side until the red ring is no longer visible on the left side. 4. Press the bolt release button. The bolt should close. 5. Attempt to fire by pulling the trigger. The hammer should not fall. 6. Put the manual safety in the "OFF" or "FIRE" position by pushing it from the right side until the red ring is visible on the left side - indicating "DANGER. 7 Pull and hold trigger back. The hammer should fall. 8. While holding the trigger to the rear, open the bolt. Press the bolt release and let the bolt go forward. 9. Release the trigger. A click should be heard. 10. Pull the trigger. The hammer should fall. Every thing works right up until #9 and #10. No "click" on step 9, and no hammer fall on step 10. This seems to correspond with most of the jams I'm having. A new round will chamber, but no "bang" when I pull the trigger. Seems like the trigger is not resetting. Doh. Not sure if there an easy fix.

Thanks Jesse. This is a gun I bought from Tom at MOA Tactical, with their competition package. I'm not positive, but I think the package includes some kind of polish job on the mag tube. The gun looked pretty clean to me when I got it, so I just put the tube on it and took it to the range without cleaning it. I'm new to auto-shotgunning, but so far, it just seems like a headache. I will take some photos the next time I can get to a range with it. Thanks.

So, I picked up one of these a few weeks ago. I read somewhere it needed to be broken in with heavy loads, so I ran a few, 3" mag duck loads (kicks like hell). It seemed to feed the heavy loads fairly well, right out of the box, so I switched over to field loads, and they would not feed, at all. I switched back to the heavy loads, and shot maybe 40 rounds, with maybe 3 or 4 jams. Then I went back to the field loads, and got some to feed. More were feeding than jamming, so I figured I would take the gun to a match and see how it would go. Got to match and the gun would not cycle the field loads, period. Not a single one. Fast forward 2 weeks (today). Took the gun back to the range, and shot about 35 heavy loads (all magnums. Some 2 3/4, some 3s. Mixed stuff, probably 10 year old shells) Now the gun was not even feeding the heavy loads reliably. I could not get the gun to feed more than one. I worked through old shells, basically one at a time. Then I switched over to brand new, 3 inch magnum duck loads. The gun started to feed these new, heavy loads fairly well, but still jamming more than is acceptable. Many times it would cycle the new round, but for whatever reason, the gun didn't go bang when I pulled the trigger. I worked through 3 full boxes (75 rounds), and the gun seemed to be starting to smooth out towards the end. I then switched back to the field loads. And it still would not feed them. it was better than before, but still not good. I could get 1 or 2 to feed, and then it would jam (fail to chamber a new round), or would chamber a new round, but not go bang when I pulled the trigger. I worked through a whole box of field loads. Don't know what to do next. I've got about 150-170 heavy loads through the gun, and another 50 or so field loads. The gun is not feeding well at all. Thanks for any advice.

Wow. 52 pages. That's a lot to read, and I admit I haven't made it through them all. I just ordered an M3000 with a 24" barrel. Was that the right move? Would 26" have been better? Can someone give me a list of the parts I need to buy to get going? - Nordic ext. tube, or kit? and which one fits? - I just want to have a 9 shot capacity magazine, so do I need a +5? - Nordic low drag follower? Which one? - Special nut from MOA? I can probably wait on the os bolt release and the charging handle. Does Tom or anyone do the mods, and if so, how much? Thanks, Greg B. Dallas

Do you have a powder and a measurement recommendation, or just recommending the 1.13 oal? I would be afraid to jump down to 1.13 from 1.16 using the same powder and measure.

WSF.pdf

Well, I went to the range with the chrony today. My results seemed to be all over the board. I am using a Dillon 650 with a standard powder charger. All the brass is scavenged range brass, assorted. The scale I'm using to measure the powder is the little Frankford Arsenal scale that only goes to 1 tenth of a grain. Using a 20 dollar digital caliper. I only made 1 or 2 adjustments to yield the various OALs... with the same settings, I was getting variances of as much as 0.005 from one round to the next, from the press. I measured each finished cartridge and sorted them by length. I weighed each charge for probably the first 20 charges, to make sure it was holding at 4.8 grains, and it was. After that I weighed probably every 5th round. I set the chrony up 6 feet in front of the bench. All the rounds were shot off-hand. Groups and point of aim was difficult to establish because of the set up at the range... not enough frequent opportunities to go down range to put up new targets, plus we were shooting off-hand anyway and neither of is is a sharp-shooter. Using 4.8 grains of Winchester WSF over 124 grn. Montana Gold fmjs, CCI primers, shot from a factory Glock 17. I have attached the results as a pdf, but here is the average for each length... 1.160 927 1.161 947 1.162 951 1.163 953 1.164 901 1.165 955 1.166 1032 1.169 893 Like I said... all over the place. Don't know what to make of it, if anything.

Awesome information guys! Thanks. I'm going to make some runs in quantities of 10 tonight, and chrono them tomorrow. Thanks.

I have loaded several hundred rounds using Montana Gold 124 gr. fmj's over 4.7 grains of Winchester WSF, with a 1.169 OAL. I got the recipe right off the Hodgdon website. Bullet Weight - 124 GR FMJ Manufacturer - Winchester Powder - WSF Bullet Diam. - .355" C.O.L. - 1.169" Grs. - 4.7 Here's my question: This load has run fine through my Glock 17, using my factory mags and some kci mags. I've run probably a dozen or more idpa matches and never had any problems until recently. I recently purchased a couple of after-market magazines that I thought were kci, but I guess maybe they are not. In any case, that OAL seems to be a little bit too long for the new magazines. I can get them loaded, but then the spring won't push them up after the first round gets loaded into the gun. Also, I ran a bug match with a little kel-tec pf-9, and while the bullets all fed and fired with no problems, on my "unload and show clear," the bullet in the gun was onto the lans or rifling, and would not let go. I had to pull so hard on the slide that it pulled the case away from the bullet, which stayed in the barrel. We had to knock it out with a push rod. That happened twice, and then I got the RO to let me fire the last round out rather than wrenching the case off the bullet. Again, fired fine everytime, just wouldn't come off the rifling. All that to say, I want to try decreasing the OAL to see if it will help with the feeding in the new mags, and with the kel-tec. 4.7 grains seems to be working fine. I have not chrono'd the load, but have to assume it is pretty close to what is listed on the Hodgdon site, which is 1015 ft/sec., and 27,700 PSI. About how much can I safely decrease the OAL, leaving the powder at 4.7? And if the answer is "not enough," can I lower the powder charge, and the OAL, and still end up around the same pressure? I'm not overly concerned about the performance of the load, beyond reliable feeding in the magazines, and the the other 9's I own. Your comments are appreciated. Thanks, Greg