Bryan Austin
09-16-2023, 08:55 AM
I was able to pick up a decent REM-UMC .303 Savage box with a few cartridges. I decided to dissect one and see what we had to talk about.
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/d7e7fe92-ace9-4de6-8f06-b07c01402b07_376429638-1375215413423442-3398637897859483943-n.jpg?width=690&upscale=false
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/0c5dc389-df91-4399-8899-b07c01401a8b_374970869-842230540526163-3875706812770421675-n.jpg?width=690&upscale=false
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/3b3f7789-5778-46bb-8fbe-b07c01403828_376427675-1029389524944072-8085901327720846864-n.jpg?width=690&upscale=false
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/3f31a24d-b72f-4fa1-a0e3-b07c01404b5e_376394108-1704863213310689-2943208674846675205-n.jpg?width=690&upscale=false
K10O ??, K=1919, 10=day, O=July
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/23e0e446-72f4-4646-ac37-b07c01406198_375444806-683977956985107-694240051524881785-n.jpg?width=690&upscale=false
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/b5dc7955-987b-423e-845e-b07c0140f4f2_374969436-154605614362876-556983680451148979-n.jpg?width=690&upscale=false
194.2gr (195gr) JSP bullet. Handloading manuals call for a 190gr and a 196gr
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/113fc507-a39f-485a-8a7d-b07c014104c4_372264971-2043541816000425-1007156953451632385-n.jpg?width=690&upscale=false
THE POWDER
Found inside was 25.3gr of "Lightning" smokeless powder. Powder grains measure .0725" dia. and .0255" thick. Sharpshooter is basically the same measurements but calls for a much different charge because it is a faster burning powder. (Sharpshooter is a faster burning powder than Lightning). Do not confuse the same charge for the 44-40 as being the same as the Lightning charge for the .303 Savage.
1926 - 12.5gr of Sharpshooter only used for 150gr bullet.
1937 - 13gr to 17.6gr of Sharpshooter used with the 190gr JSP between 1,335fps to 1,695fps @ between 17,600lbs and 33,000lbs respectfully. Right there is the difference between the need for normal barrels and the need for special barrels (https://docs.google.com/spreadsheets/d/1BBflh-WL-R4TIojuEbYf4Ucm0mrtGke4/edit#gid=526911978) as far as velocity and pressures are concerned.
1937 Sharpe's data - 25.8gr of Lightning with a 190gr JSP 1,990fps @ 41,000lbs.
Thus this REM-UMC is a full bore load for the .303 Savage chambered rifles of which needed special everything!!!
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/10ab9ba1-b1fc-45be-bd17-b07c0141502c_372409782-3618732295113676-1374993268380259433-n.jpg?width=690&upscale=false
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/ab4e98fe-6979-45b0-b28d-b07c01443e5e_375763455-3399996993584916-1450777866570998048-n.jpg?width=690&upscale=false
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/df9f5462-622e-46fb-9ef4-b07c014448f5_376397155-326464596710411-6860375682887635579-n.jpg?width=690&upscale=false
The primers are well past the patent war dates, but appears to be of the 1882 Hobbs patent.
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/6be02ae1-fbc0-46d1-8a36-b07c014434ab_376391858-644516231163872-1297192770705197761-n.jpg?width=690&upscale=false
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/12ad3485-61b0-46bf-86ad-b07c0144ddc6_375766965-3562837613985457-4406285912209441747-n.jpg?width=690&upscale=false
I figured any inaccuracies would be quickly corrected in a reply!
THANKS!!
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/d7e7fe92-ace9-4de6-8f06-b07c01402b07_376429638-1375215413423442-3398637897859483943-n.jpg?width=690&upscale=false
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/0c5dc389-df91-4399-8899-b07c01401a8b_374970869-842230540526163-3875706812770421675-n.jpg?width=690&upscale=false
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/3b3f7789-5778-46bb-8fbe-b07c01403828_376427675-1029389524944072-8085901327720846864-n.jpg?width=690&upscale=false
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/3f31a24d-b72f-4fa1-a0e3-b07c01404b5e_376394108-1704863213310689-2943208674846675205-n.jpg?width=690&upscale=false
K10O ??, K=1919, 10=day, O=July
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/23e0e446-72f4-4646-ac37-b07c01406198_375444806-683977956985107-694240051524881785-n.jpg?width=690&upscale=false
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/b5dc7955-987b-423e-845e-b07c0140f4f2_374969436-154605614362876-556983680451148979-n.jpg?width=690&upscale=false
194.2gr (195gr) JSP bullet. Handloading manuals call for a 190gr and a 196gr
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/113fc507-a39f-485a-8a7d-b07c014104c4_372264971-2043541816000425-1007156953451632385-n.jpg?width=690&upscale=false
THE POWDER
Found inside was 25.3gr of "Lightning" smokeless powder. Powder grains measure .0725" dia. and .0255" thick. Sharpshooter is basically the same measurements but calls for a much different charge because it is a faster burning powder. (Sharpshooter is a faster burning powder than Lightning). Do not confuse the same charge for the 44-40 as being the same as the Lightning charge for the .303 Savage.
1926 - 12.5gr of Sharpshooter only used for 150gr bullet.
1937 - 13gr to 17.6gr of Sharpshooter used with the 190gr JSP between 1,335fps to 1,695fps @ between 17,600lbs and 33,000lbs respectfully. Right there is the difference between the need for normal barrels and the need for special barrels (https://docs.google.com/spreadsheets/d/1BBflh-WL-R4TIojuEbYf4Ucm0mrtGke4/edit#gid=526911978) as far as velocity and pressures are concerned.
1937 Sharpe's data - 25.8gr of Lightning with a 190gr JSP 1,990fps @ 41,000lbs.
Thus this REM-UMC is a full bore load for the .303 Savage chambered rifles of which needed special everything!!!
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/10ab9ba1-b1fc-45be-bd17-b07c0141502c_372409782-3618732295113676-1374993268380259433-n.jpg?width=690&upscale=false
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/ab4e98fe-6979-45b0-b28d-b07c01443e5e_375763455-3399996993584916-1450777866570998048-n.jpg?width=690&upscale=false
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/df9f5462-622e-46fb-9ef4-b07c014448f5_376397155-326464596710411-6860375682887635579-n.jpg?width=690&upscale=false
The primers are well past the patent war dates, but appears to be of the 1882 Hobbs patent.
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/6be02ae1-fbc0-46d1-8a36-b07c014434ab_376391858-644516231163872-1297192770705197761-n.jpg?width=690&upscale=false
https://forum.castbulletassoc.org/content/uploads/0886c490-998c-4883-a316-0cf61b7053ad/12ad3485-61b0-46bf-86ad-b07c0144ddc6_375766965-3562837613985457-4406285912209441747-n.jpg?width=690&upscale=false
I figured any inaccuracies would be quickly corrected in a reply!
THANKS!!