Elric
Well-Known Member
Supposedly a good powder, but erosive... 
It was erosive with the original 220gr load at 1900(?) fps, but trying to add another 200+ fps made it even worse. IIRC, with the hotter load, accuracy dropped off at 3500 rnds, and barrel life was only a thousand more rounds?
Aside from the single lug, originally for 36k or so...
https://en.wikipedia.org/wiki/Laflin_&_Rand_Powder_Company
"U.S. Army Lieutenant Garland Whistler assisted American Smokeless Powder Company factory superintendent Henry Aspinwall in formulating an improved powder. They reduced the nitroglycerine content from 58% to 30%; and the extruded formulation, named W.A. in recognition of their work, was cut into black perforated discs 0.08 inches (2.0 mm) in diameter and 0.045 inches (1.1 mm) thick. W.A. .30 caliber smokeless powder was the standard for United States military service rifles from 1896 until 1908...
http://weatherbynation.com/index.php?topic=5210.0
http://www.castpics.net/subsite2/GeneralReference/L&R-Smokeless.pdf
https://docs.google.com/viewer?url=patentimages.storage.googleapis.com/pdfs/US541911.pdf
It was erosive with the original 220gr load at 1900(?) fps, but trying to add another 200+ fps made it even worse. IIRC, with the hotter load, accuracy dropped off at 3500 rnds, and barrel life was only a thousand more rounds?Aside from the single lug, originally for 36k or so...
https://en.wikipedia.org/wiki/Laflin_&_Rand_Powder_Company
"U.S. Army Lieutenant Garland Whistler assisted American Smokeless Powder Company factory superintendent Henry Aspinwall in formulating an improved powder. They reduced the nitroglycerine content from 58% to 30%; and the extruded formulation, named W.A. in recognition of their work, was cut into black perforated discs 0.08 inches (2.0 mm) in diameter and 0.045 inches (1.1 mm) thick. W.A. .30 caliber smokeless powder was the standard for United States military service rifles from 1896 until 1908...
http://weatherbynation.com/index.php?topic=5210.0
http://www.castpics.net/subsite2/GeneralReference/L&R-Smokeless.pdf
https://docs.google.com/viewer?url=patentimages.storage.googleapis.com/pdfs/US541911.pdf
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