![]() |
![]() |
![]() |
|||||||||||||||||||||||||||||||||||||||
|
![]() |
![]() |
![]() |
#3 | ||||||
|
![]()
Bulk Smokeless ("E.C.", "Schultze", and DuPont) were introduced in the U.S. c. 1892, and were in general use by 1895.
The Parker Brothers 1893 Catalogue stated: “Our guns are bored on the latest improved system for shooting Nitros, or Smokeless Powder, and all our guns are tested with some one of the most approved makes, and a tag accompanies each gun, giving the results of such a (pattern) test.” A DuPont Ballistic Table was published in Parker Brothers' “The Small Bore Shotgun” c. 1920 http://parkerguns.org/pages/PDF%20Do...%20Shotgun.pdf Numbers require adding 10 - 14% for modern piezo transducer pressures. 12 gauge 3 Dr. Eq. 1 1/8 oz. = 8,110 psi 3 1/4 Dr. Eq. 1 1/8 oz. = 8,960 psi 3 1/2 Dr. Eq. 1 1/4 oz. = 9,900 psi More here https://docs.google.com/document/d/1...UOZEFU/preview
__________________
http://sites.google.com/a/damascuskn...e.com/www/home |
||||||
![]() |
![]() |
![]() |
![]() |
![]() |
The Following 3 Users Say Thank You to Drew Hause For Your Post: |
![]() |
![]() |
![]() |
#4 | |||||||
|
![]()
Dean... what is deemed a safe wall thickness?
Thx Quote:
|
|||||||
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
#5 | ||||||
|
![]()
These make a nice light target and small bird load. For pheasant out here on the plains , I go to 1 1/8 oz 3 dram loads.
|
||||||
![]() |
![]() |
![]() |
![]() |
![]() |
The Following 2 Users Say Thank You to Bruce Day For Your Post: |
![]() |
![]() |
![]() |
#6 | ||||||
|
![]() Most classic SXS folks believe .025" wall thickness to be the minimum for safe shooting. .
__________________
"I'm a Setter man. Not because I think they're better than the other breeds, but because I'm a romantic - stuck on tradition - and to me, a Setter just "belongs" in the grouse picture." George King, "That's Ruff", 2010 - a timeless classic. |
||||||
![]() |
![]() |
![]() |
![]() |
![]() |
The Following 2 Users Say Thank You to Dean Romig For Your Post: |
![]() |
![]() |
![]() |
#7 | ||||||
|
![]()
Dean's answer would be the short version
![]() Since I've never found engineering drawings or specifications by ANY U.S. maker for wall thickness, the recommendations are based on lots of measurements of presumed to be unaltered barrels. http://parkerguns.org/pages/faq/BarrelThickness.htm Never missing an opportunity to rant ![]() Consider this ![]()
__________________
http://sites.google.com/a/damascuskn...e.com/www/home |
||||||
![]() |
![]() |
![]() |
![]() |
![]() |
The Following 3 Users Say Thank You to Drew Hause For Your Post: |
![]() |
![]() |
![]() |
#8 | ||||||
|
![]()
My 1890 era 12's measure .750 my 10's from the same era measure .780. After 1900 the 12's measure .730 I don't own any 10's past 1898, but my two 10's from that date still measure .780. I have a 1891 CH 12ga on a #1 frame that measures .750 and still has min walls of .036 (.060 at 9" from the muzzle)and the gun weights 7lbs 4oz exactly to the letter so I believe the barrels are untouched. Just my 2 cents.
|
||||||
![]() |
![]() |
![]() |
![]() |
![]() |
The Following User Says Thank You to Craig Larter For Your Post: |
![]() |
![]() |
![]() |
#9 | |||||||
|
![]() Quote:
|
|||||||
![]() |
![]() |
![]() |
![]() |
![]() |
The Following 2 Users Say Thank You to Milton C Starr For Your Post: |
![]() |
|
|