TonyRumore 1,332 Posted July 5, 2007 Report Share Posted July 5, 2007 I don't believe I have built any 12" guns since early 2005. These days about 90% are 8" and 10% 10". Tony Rumore Tromix Corp Quote Link to post Share on other sites
nycGUNguy 61 Posted July 5, 2007 Report Share Posted July 5, 2007 Too bad I can't have one of those here! Quote Link to post Share on other sites
MD_Willington 11 Posted July 5, 2007 Report Share Posted July 5, 2007 Tony, you and Will build the coolest stuff! Quote Link to post Share on other sites
TEXASAK73 13 Posted July 6, 2007 Report Share Posted July 6, 2007 Looks good but 8" would be cooler.Tony I need to get a quote in for a SBS on my converted S-12.I should have the Trust set up by the time you take work again. Quote Link to post Share on other sites
spicoli 12 Posted December 6, 2007 Report Share Posted December 6, 2007 Tony, Just wanted to say the gun looks and feels great. If there is any reduction in recoil or noise, Ill be glad I got the 12" barrel. Maybe when the kids grow up, ill get a chance to try it out. Keep up the great work. Quote Link to post Share on other sites
BattleRifleG3 16 Posted December 8, 2007 Report Share Posted December 8, 2007 12" is the way I'd want it if I ever got such an animal. The Tapco galil handguard looks to be just the right size. Quote Link to post Share on other sites
Ben Shepherd 0 Posted January 1, 2008 Report Share Posted January 1, 2008 Just so you all know: I work with the guys over at www.fbmginc.com We have one of Tonys 8" monsters. We took it out to a shoot and ran it over my chrono. A 1 oz slug load that did 1400 out of an 870 was still doing 1074 out of that 8" shorty. So not as much velocity drop as you'd think. We quit testing after my chrono took 2 direct hits from wads, or I'd have more data. Quote Link to post Share on other sites
TonyRumore 1,332 Posted January 1, 2008 Author Report Share Posted January 1, 2008 How long was the barrel on the 870? Tony Quote Link to post Share on other sites
DAVILADOG 0 Posted January 26, 2008 Report Share Posted January 26, 2008 Tony, Is it for sale? If yes, please contact me at daviladog@aol.com. Thanks. Quote Link to post Share on other sites
TonyRumore 1,332 Posted January 26, 2008 Author Report Share Posted January 26, 2008 No, it was built for a customer. Tony Quote Link to post Share on other sites
dodgeturbointerceptor 1 Posted January 26, 2008 Report Share Posted January 26, 2008 What if anything was done to the gas system? Quote Link to post Share on other sites
TonyRumore 1,332 Posted January 26, 2008 Author Report Share Posted January 26, 2008 It was moved back 2". Tony Quote Link to post Share on other sites
dodgeturbointerceptor 1 Posted January 29, 2008 Report Share Posted January 29, 2008 It was moved back 2". Tony Not sure if it's a company/weaponmaker thing. But can You post at what length You've found You can cut without moving the gas system back? Thanks. I've asked before, and all I got was Yeah....we could figure it out. Or yeah! Tromix can do anything! I like the spirit/confidence of your fans. But I've got a boring S-12K factory look I'm going for. And people keep posting replies with drastically altered gas systems. As many SBS's You've done Tony. Figured I'd ask the man a straight up question, for a straight up answer without someone else answering. Looking at the reality for a future SBS through You. If You won't answer. That's cool. I'm interested in what I have to work with. Thanks in Advance. Quote Link to post Share on other sites
Cobra 76 two 2,677 Posted January 29, 2008 Report Share Posted January 29, 2008 I don't believe I have built any 12" guns since early 2005. These days about 90% are 8" and 10% 10". Tony Rumore Tromix Corp Honestly I think that gun looks much better than it would if the bbl was any shorter. A beefy gun like an S-12 needs to have some barrel hanging out there IMO. I just don't get the fascination people have with making the bbl as short as humanly possible til the damned brake is all you see peeking out of the HG. Maybe it's just me... I like balance. Quote Link to post Share on other sites
TonyRumore 1,332 Posted January 29, 2008 Author Report Share Posted January 29, 2008 My personal gun is a 12". I don't care for the blast that comes off those 8" tubes right in front of my face. There is no definitive answer as to how short you can cut the barrel, since the power level of the shell makes such a huge difference as to whether the gun will cycle or not. If you want to shoot bird shot and not have enormous gas ports, the gas block needs to be moved back 2" for a 12" gun and 3.75" for an 8" gun. With that gas port position, you can use the factory .073" size gas port holes. However, if you don't mind running over-size gas port holes and only shoot magnum shells, you can cut the barrel back to 11" and leave your factory gas system as-is. Tony Rumore Tromix Corp Quote Link to post Share on other sites
dodgeturbointerceptor 1 Posted January 29, 2008 Report Share Posted January 29, 2008 My personal gun is a 12". I don't care for the blast that comes off those 8" tubes right in front of my face. There is no definitive answer as to how short you can cut the barrel, since the power level of the shell makes such a huge difference as to whether the gun will cycle or not. If you want to shoot bird shot and not have enormous gas ports, the gas block needs to be moved back 2" for a 12" gun and 3.75" for an 8" gun. With that gas port position, you can use the factory .073" size gas port holes. However, if you don't mind running over-size gas port holes and only shoot magnum shells, you can cut the barrel back to 11" and leave your factory gas system as-is. Tony Rumore Tromix Corp Appreciate the info Tony. I bet You have that damn gas system down by now....LOL I remember the cut 22" barrels down to 18.5", and everyone shitting if they had one hiccup with some low shot! We've come a long way around here...lol Quote Link to post Share on other sites
joelrod47 373 Posted January 29, 2008 Report Share Posted January 29, 2008 Peek - a - BOOM !!!! Granted, this is a 10" barrel with a stock handguard........ Balance is fine !! Just about the same length from the mag to the back of the stock as it is from the mag to the tip of the brake............ Different strokes.................... Quote Link to post Share on other sites
Shooter762x51 0 Posted January 31, 2008 Report Share Posted January 31, 2008 Did u do the work on that 11 inch barrel and did u make the gas system any shorter? Peek - a - BOOM !!!! Granted, this is a 10" barrel with a stock handguard........ Balance is fine !! Just about the same length from the mag to the back of the stock as it is from the mag to the tip of the brake............ Different strokes.................... Quote Link to post Share on other sites
TonyRumore 1,332 Posted January 31, 2008 Author Report Share Posted January 31, 2008 Yes, the gas system on that gun was moved rearward about 3". That particular gun is a bit of an oddball however. Since then, I have standardized the gas block positions to either 3.75" back on 8"- 10" guns, and 2" back on 11-14" guns. Tony Rumore Tromix Corp Quote Link to post Share on other sites
joelrod47 373 Posted January 31, 2008 Report Share Posted January 31, 2008 Did u do the work on that 11 inch barrel and did u make the gas system any shorter? Shooter, It's a TROMIX gun.........(see Tony's post, above) Quote Link to post Share on other sites
macbeau 902 Posted February 1, 2008 Report Share Posted February 1, 2008 (edited) I don't believe I have built any 12" guns since early 2005. These days about 90% are 8" and 10% 10". Tony Rumore Tromix Corp YOWSER! I have a 13" Ithaca M37 SBS that I conside to be about right. An S-12 of about 10" to 12" would be about as short as I would want to go... The muzzle blast seems VERY significant on anything much shorter than that!!!! Tony - What's a 20 ga. SBS Saiga like? Edited February 1, 2008 by macbeau Quote Link to post Share on other sites
Shooter762x51 0 Posted February 1, 2008 Report Share Posted February 1, 2008 Did u do the work on that 11 inch barrel and did u make the gas system any shorter? Shooter, It's a TROMIX gun.........(see Tony's post, above) Thanks for all info guys... i was also wondering about the 308's i saw the 8" shorty and was wondering if i wanted to shorten the barrel to say 10-12 inches will i have to shorten the gas system to do so or can i leave it stock lenght??? Quote Link to post Share on other sites
TonyRumore 1,332 Posted February 1, 2008 Author Report Share Posted February 1, 2008 You will need to shorten it. Tony Quote Link to post Share on other sites
jhartmac 0 Posted February 13, 2008 Report Share Posted February 13, 2008 I am definately interested in a 12", could prob do it myself but not sure about the gas system, as in where or relocate it etc, is there a formula for it? ;-) Quote Link to post Share on other sites
mechsterbator 0 Posted February 13, 2008 Report Share Posted February 13, 2008 I am definately interested in a 12", could prob do it myself but not sure about the gas system, as in where or relocate it etc, is there a formula for it? ;-) tony could tell ya, but then he'd have to kill ya jk Quote Link to post Share on other sites
TonyRumore 1,332 Posted February 14, 2008 Author Report Share Posted February 14, 2008 Move the gas system back 2" for the 12" gun. Then you can run the standard gas port configuration of 4ea .073" gas ports. Tony Quote Link to post Share on other sites
jhartmac 0 Posted February 14, 2008 Report Share Posted February 14, 2008 Thank you appreciate the info I will try it when my S12 arrives, and should say when my paperwork gets back for the SBS........... Quote Link to post Share on other sites
madmax4x4 68 Posted February 16, 2008 Report Share Posted February 16, 2008 Thank you appreciate the info I will try it when my S12 arrives, and should say when my paperwork gets back for the SBS........... Has anyone around made a s corp or corporation to get class III stuff so you don,t need the letter? Also did anyone get a sbs saiga form red stick or jed jackett arm? Live in New Orlean so to try to get a letter is a waste of time. Quote Link to post Share on other sites
jhartmac 0 Posted February 16, 2008 Report Share Posted February 16, 2008 Has anyone around made a s corp or corporation to get class III stuff so you don,t need the letter? Also did anyone get a sbs saiga form red stick or jed jackett arm? Live in New Orlean so to try to get a letter is a waste of time Getting a Class III is alot more involved then you think, your annual fee is I beleive last time I checked like over $700.00 you need a business location in most states, you are open to BATF inspection, you must provide transaction history- to prove you are really in business, you must provide tax returns indicating the business is real, and you must first go through the background through your CLEO and the BATF. If you can't get a sign off for a SBS from your local CLEO you might wanna consider the logistics of moving out of the state, for me although Maryland is kinda bad, we can own machine guns and class III items but we can't carry legally which is a big deal to me, and hopefully soon I will be moving to Virginia just a little tired of Maryland. Quote Link to post Share on other sites
jmacken37 4 Posted February 16, 2008 Report Share Posted February 16, 2008 Has anyone around made a s corp or corporation to get class III stuff so you don,t need the letter?Also did anyone get a sbs saiga form red stick or jed jackett arm? Live in New Orlean so to try to get a letter is a waste of time Getting a Class III is alot more involved then you think, your annual fee is I beleive last time I checked like over $700.00 you need a business location in most states, you are open to BATF inspection, you must provide transaction history- to prove you are really in business, you must provide tax returns indicating the business is real, and you must first go through the background through your CLEO and the BATF. If you can't get a sign off for a SBS from your local CLEO you might wanna consider the logistics of moving out of the state, for me although Maryland is kinda bad, we can own machine guns and class III items but we can't carry legally which is a big deal to me, and hopefully soon I will be moving to Virginia just a little tired of Maryland. The gentleman is asking about doing corporation purchases not becoming an FFL/SOT from my reading of his post. I'd go the trust route. Check with AR15.com or subguns.com NFA archive. Lots of information. Jake Quote Link to post Share on other sites
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