dvc4you Posted March 14, 2019 Share Posted March 14, 2019 Hello, Need to put together a 140mm SV magazine for maximum capacity in Open 9mm Major. I am using Grams internals, what basepad do you recommend? How many rounds reloadable? Thanks Sent from my iPhone using Tapatalk Pro Link to comment Share on other sites More sharing options...
Sarge Posted March 14, 2019 Share Posted March 14, 2019 Since 140’s in Open don’t have to fit a gauge you can pretty much put anything you want on it. Probably a 7mm TTI since that’s what I run and know it gets me 22 reloadable in STI tubes Link to comment Share on other sites More sharing options...
Whitefish Posted March 14, 2019 Share Posted March 14, 2019 I have 4 of the old style SV 38/9 140 mags with Grams springs and followers and Grams 11 mm base pads for my 9 major open gun. I get 25 rounds to start in them if I use the regular 11 coil Grams spring and 24 rounds reloadable, if I use a longer Grams 13 coil spring. The 11 coil springs have been reliable, but the 13 coil springs give an extra measure of feeding force in that regard, although down a round. I have the 13 coil springs installed now and down the one round has not made much difference in my experience. Link to comment Share on other sites More sharing options...
Aircooled6racer Posted March 15, 2019 Share Posted March 15, 2019 Hello: Use the Grams follower with the 170mm spring and a Dawson para base pad. It will fit the gauge and give you 27 rounds. Thanks, Eric Link to comment Share on other sites More sharing options...
highhope Posted March 15, 2019 Share Posted March 15, 2019 why 140mm? Link to comment Share on other sites More sharing options...
dvc4you Posted March 15, 2019 Author Share Posted March 15, 2019 I find it easier to reload to 140mm than 170mm. Sent from my iPhone using Tapatalk Pro Link to comment Share on other sites More sharing options...
jcc7x7 Posted March 15, 2019 Share Posted March 15, 2019 SVI 140 tube TTI Spring and follower or Grams spring and follower 7mm TTI base pad 24 for sure and it reloads One of mine wants to go 25 but won't quite do it Link to comment Share on other sites More sharing options...
Glk21C Posted March 16, 2019 Share Posted March 16, 2019 On 3/14/2019 at 2:51 PM, Whitefish said: I have 4 of the old style SV 38/9 140 mags with Grams springs and followers and Grams 11 mm base pads for my 9 major open gun. I get 25 rounds to start in them if I use the regular 11 coil Grams spring and 24 rounds reloadable, if I use a longer Grams 13 coil spring. The 11 coil springs have been reliable, but the 13 coil springs give an extra measure of feeding force in that regard, although down a round. I have the 13 coil springs installed now and down the one round has not made much difference in my experience. what he said, Grams all the way Link to comment Share on other sites More sharing options...
dvc4you Posted March 16, 2019 Author Share Posted March 16, 2019 Hello: Use the Grams follower with the 170mm spring and a Dawson para base pad. It will fit the gauge and give you 27 rounds. Thanks, EricThis is worth trying...Sent from my iPhone using Tapatalk Pro Link to comment Share on other sites More sharing options...
Shmella Posted March 16, 2019 Share Posted March 16, 2019 Anybody find taran followers to give problems bs grams? I grabbed a couple tartan followers when they were on sale. Seem to be similar Just curious if taran are worse than grams. Link to comment Share on other sites More sharing options...
Glk21C Posted March 16, 2019 Share Posted March 16, 2019 grams followers and springs are of his design from a long time ago(20+ years) taran followers are from when he purchased everything from Bolen and later when he imitated Grams follower design. Link to comment Share on other sites More sharing options...
B_Seehawer Posted March 17, 2019 Share Posted March 17, 2019 Anybody find taran followers to give problems bs grams? I grabbed a couple tartan followers when they were on sale. Seem to be similar Just curious if taran are worse than grams. All I run are TTI springs and followers in my MBX mags, zero failures. I DO run Grams guts in my STI Limited mags though. Link to comment Share on other sites More sharing options...
Dchassejr Posted March 18, 2019 Share Posted March 18, 2019 On 3/17/2019 at 11:40 AM, B_Seehawer said: All I run are TTI springs and followers in my MBX mags, zero failures. I DO run Grams guts in my STI Limited mags though. TTI followers in MBX 140s or 170s or Both? Link to comment Share on other sites More sharing options...
B_Seehawer Posted March 18, 2019 Share Posted March 18, 2019 TTI followers in MBX 140s or 170s or Both?Yup, for both lengths. Link to comment Share on other sites More sharing options...
Dchassejr Posted March 18, 2019 Share Posted March 18, 2019 (edited) 5 minutes ago, B_Seehawer said: Yup, for both lengths. TTI universal follower? Did you have to do any special tuning? Edited March 18, 2019 by Dchassejr Link to comment Share on other sites More sharing options...
B_Seehawer Posted March 18, 2019 Share Posted March 18, 2019 TTI universal follower? Did you have to do any special tuning?Yup, just installed and that was it. I’ve yet to touch up an MBX tube. Link to comment Share on other sites More sharing options...
427Cobra Posted March 23, 2019 Share Posted March 23, 2019 Taran Universal follower, Taran 11coil spring, Taran 7g base pad, 140 SVI tube, 24 rounds Link to comment Share on other sites More sharing options...
OPENB Posted March 23, 2019 Share Posted March 23, 2019 This thread got me thinking about my 140 9mm open mags. I’ve been using Dawson bases & Grams guts, getting 23 just by slapping it all together. I just got a Cheely E2 grip, and was concerned the Dawson’s wouldn’t fit, so I swapped some Arredondo extended bases onto them and I now get 25. The one Grams 11mm base I have gave me 24. Link to comment Share on other sites More sharing options...
Posvar Posted March 25, 2019 Share Posted March 25, 2019 I was chasing this same thing until I got some 155. Wish I would have done that sooner Link to comment Share on other sites More sharing options...
b18prl Posted April 17, 2019 Share Posted April 17, 2019 I used Dawson Para base pad too with MBX 13 coils spring and TTI follower got me 27 of 9mm Link to comment Share on other sites More sharing options...
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