Author Topic: compressed spring OD'ers  (Read 1409 times)

Offline tjk

  • Hero Member
  • *****
  • Posts: 2275
    • http://
compressed spring OD'ers
« on: August 02, 2009, 12:14:04 AM »
Question for the tuners,...or the folks more mathematically inclined than I. Been wonderring how to measure the OD of a compressed main spring. Is there a mathmatical formula for this,..or would it be better to take a stick of all thread and compress a spring with washers and nuts to measure? tjk
397 Benji-98\' model    
Marksman  0035, My Fav!,CDT T\'d
Crosman Sierra-Pro,.177
Benji 392 08\'
CDT TT\'d RWS 34 .22,CP 4-16X40 AO
MM T\'d Marksman 0035
Crosman G1 Extreme
Daisy PowerLine 1000
TF-97 .22
B-28A MM T\'d
B-28 OEM Tuned by me
Beeman .22 RX-2 w/Theoben GR
Beeman .177 R1 Santa Rosa

Offline bcshooter

  • Hero Member
  • *****
  • Posts: 616
    • http://
RE: compressed spring OD'ers
« Reply #1 on: August 02, 2009, 03:01:08 AM »
Hi Thomas,a 18 to 24 inch length of threaded rod, run rod thru spring and compress with washers and nuts. This would be a safe way to get all the measurements you want..........Bill
AIR ARMS TX200 MkIII .22cal w/Bushnell Banner 6-18x50 AO      
BAM B 26   .177cal w/Centerpoint 4-16x40 AO/IR
BAM B 30-1 .177cal w/Leapers 4-16x50 AO/IR
CROSMAN 1377 .22cal w/UTG BugBuster 6x32 AO/IR
CROSMAN 2240 .177cal 10.1\" LW barrel w/UTG BugBuster 6x32 AO/IR
CROSMAN 2250B .22cal w/UTG Leapers 2-7x32 AO/IR
DIANA/RWS Model 34N .177cal w/Bushnell Sportsman 4-12x40 AO
DIANA/RWS Model 34P .22cal w/Centerpoint 4-16x40 AO/IR
DIANA/RWS Model 350 .22cal Feuerkraft Pro Compact w/Vortek PG-2 and Bushnell Banner 6-18x50 AO
DIANA/RWS Model 48  .177cal w/Centerpoint 4-16x40 AO/IR
DIANA/RWS Model 52   .22cal w/Leapers 4-16x50 AO/IR
DIANA/RWS Model 54  .177cal w/Leapers 4-16x50 AO/IR
DIANA/RWS Model 54   .22cal w/Leapers 4-16x50 AO/IR


Offline tjk

  • Hero Member
  • *****
  • Posts: 2275
    • http://
Re: compressed spring OD'ers
« Reply #2 on: August 02, 2009, 03:22:26 AM »
Thanks Bill, I've been toying with a few ideas for more custom work on the 'dreaded' Hatsan made  rifles. I believe they have alot more potential than most folks think. My main objective,.....make them more 'scope friendly'!! LOL's We'll see!! tjk
397 Benji-98\' model    
Marksman  0035, My Fav!,CDT T\'d
Crosman Sierra-Pro,.177
Benji 392 08\'
CDT TT\'d RWS 34 .22,CP 4-16X40 AO
MM T\'d Marksman 0035
Crosman G1 Extreme
Daisy PowerLine 1000
TF-97 .22
B-28A MM T\'d
B-28 OEM Tuned by me
Beeman .22 RX-2 w/Theoben GR
Beeman .177 R1 Santa Rosa

Offline kiwi

  • Hero Member
  • *****
  • Posts: 1410
    • http://www.nzairgunners.com
Re: compressed spring OD'ers
« Reply #3 on: August 02, 2009, 03:58:39 PM »
they do tune up well...they are so bad that a little work
makes a big diffrents...my mod 75 got new guides and
a top hat/front guide witch it didnt have..the only trick was
the new rear guide and rear plug system so I could retaine
the saftey unit...

Pete
Kiwi

Spring guide sets...  http://www.trademe.co.nz/Members/Listings.aspx?
http://www.nzairgunners.com

If guns are outlawed ONLY outlaws will have guns

A tin of Gamo pellets is like a box of chocs U never know what yer going to get.....