Fullauto_Shooter Posted February 12, 2015 Share Posted February 12, 2015 Installed a Nordic Comp +9 Tube on my Benelli M2 last night, along with an uncut Nordic Comp extension tube spring. While dry-cycling rounds, I noticed the last round in the tube got stuck on the lifter and didn't feed maybe 50% of the time. It seemed like the spring was too short (it only extended 10" extended beyond the end of the tube). I've ordered new Nordic Comp springs to see if this will fix the problem, but has anyone else had this issue? If so, what was the fix? I assume the Nordic springs are the way to go, but let me know if I'm missing something. Thanks in advance!! Link to comment Share on other sites More sharing options...
WCK Posted February 13, 2015 Share Posted February 13, 2015 How long is the total length of your magazine tube spring? Nordic uncut magazine tube springs are 45" in length. Your magazine tube spring should extend 12" to 14" beyond the magazine tube extension. I like to go 14" beyond the magazine tube extension and wouldn't go any shorter with a long magazine tube extension. 12" beyond a long magazine tube extension is living on the edge. When you put your new magazine tube spring in don't trim it before you install it, load the magazine tube first with as many shells you can in it, let the spring take a set and then trim it to length. Link to comment Share on other sites More sharing options...
amccallister Posted February 13, 2015 Share Posted February 13, 2015 I don't cut my Nordic springs at all for my 12 round tube (Benelli M1 with a +9). I just bend the ends in a little and use the whole thing. Usually about 16" past the end of the extension. Link to comment Share on other sites More sharing options...
Fullauto_Shooter Posted February 13, 2015 Author Share Posted February 13, 2015 I thought the spring I installed was new, but the package was unsealed so there's a chance it's used. Either way, I've got several brand new Nordic springs headed my way so I'll compare them with my current spring when the new ones arrive. I normally run a spring 14" past the end of the extension, but the spring I used wasn't that long. Link to comment Share on other sites More sharing options...
openclassterror Posted February 13, 2015 Share Posted February 13, 2015 The Stoeger M3000 is a 4 shot tube, and I run a +9 with uncut Nordic spring. Works great, as it has for about 8,000 rounds Link to comment Share on other sites More sharing options...
maka Posted February 15, 2015 Share Posted February 15, 2015 12-14" past the end is what I would recommend. I originally cut mine to about 12" but it's at about 11" past the end of the tube now. Zero feeding issues, either with the tube packed or last shells being fed. This is with an M2 and +7 tube. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
jon49erfan Posted February 15, 2015 Share Posted February 15, 2015 . 12" beyond a long magazine tube extension is living on the edge. im guessing thats gun specific. My 1301 was cut at 6-7" and ive had 0 problems over the past year. just measured it now and its sitting at 5". Link to comment Share on other sites More sharing options...
Bullittmcqueen Posted February 16, 2015 Share Posted February 16, 2015 Yep on my M2 with +9 tube I run an uncut spring and it loads all 12 easily. Link to comment Share on other sites More sharing options...
MarkCO Posted February 16, 2015 Share Posted February 16, 2015 I hope everyone better than me uses at least 16" of spring more than their extension length. Every shotgun I have run, 870, P12, 1100, 11-87, SLPs, VMs, M3000, M4, M2 has run 100% with 10" of free spring length. Some did not run with 16" plus BTW. If you have at least 9 rounds in the magazine. The length after a day or two compressed and a 20-30 full cycles should, in inches, about equal your shell count for the best balance of variables. I also found that the longer lengths need to be replaced more often. You will lose about an inch after sitting compressed and the first case of ammo. Link to comment Share on other sites More sharing options...
Fullauto_Shooter Posted February 16, 2015 Author Share Posted February 16, 2015 Great feedback Mark - thank you! I'm just waiting for my new springs to arrive - confident this will fix the problem. Link to comment Share on other sites More sharing options...
Fullauto_Shooter Posted February 24, 2015 Author Share Posted February 24, 2015 (edited) Got my new Nordic springs and cut them 11" past the end of the extension and the shotgun's working like a charm now! Thanks to all for the great advice - seems like no matter how long I do this stuff (3-gun), there's always more to learn. ETA - figured out that what I thought was my "new" spring had actually been cut. Edited February 24, 2015 by Fullauto_Shooter Link to comment Share on other sites More sharing options...
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