Old Ironsights
07-04-2008, 08:26 PM
Arrgh
Looky this:
http://i5.photobucket.com/albums/y180/MrMisanthrope/IMG_5514-1.jpg
Boolit #1, Lyman 457122, 3ww/1pb alloy. Sized .457, Seated to crimp groove. COAL 2.555. This feeds slicker than snot and is my "go to" load. Dia in front of front driving band (.060?) is .445.
Boolit #2, LBT .458 450 LFNGC, heat treated WW, sized .459. Seated to crimp groove. Pre chambering COAL 2.48 post chambering COAL 2.4695
Note the Land Engagement at 2.29. Dia here is .455. Point of land engagement is .13x (+/-) from case mouth.
Boolit #3, Axeman's 600gr LBT. Quenched WW, Sized .457 (PITA). No crimp groove. Pre chambering COAL 2.555. Post chambering COAL 2.528, Again, land engagement dia .455.
Boolit #4 is the same boolit, but it actually almost pulled from the case on extraction.
When I load a 405gr Rainier TCFMJ out to 2.555 and chamber it, it seats itself to 2.423 on loading... tight to the lands.
So that's what, a throat of .132 or thereabouts?
Is it normal for the 1886 to have that short of a throat?
Glad I only loaded up a couple of rounds to test-chamber...
Looky this:
http://i5.photobucket.com/albums/y180/MrMisanthrope/IMG_5514-1.jpg
Boolit #1, Lyman 457122, 3ww/1pb alloy. Sized .457, Seated to crimp groove. COAL 2.555. This feeds slicker than snot and is my "go to" load. Dia in front of front driving band (.060?) is .445.
Boolit #2, LBT .458 450 LFNGC, heat treated WW, sized .459. Seated to crimp groove. Pre chambering COAL 2.48 post chambering COAL 2.4695
Note the Land Engagement at 2.29. Dia here is .455. Point of land engagement is .13x (+/-) from case mouth.
Boolit #3, Axeman's 600gr LBT. Quenched WW, Sized .457 (PITA). No crimp groove. Pre chambering COAL 2.555. Post chambering COAL 2.528, Again, land engagement dia .455.
Boolit #4 is the same boolit, but it actually almost pulled from the case on extraction.
When I load a 405gr Rainier TCFMJ out to 2.555 and chamber it, it seats itself to 2.423 on loading... tight to the lands.
So that's what, a throat of .132 or thereabouts?
Is it normal for the 1886 to have that short of a throat?
Glad I only loaded up a couple of rounds to test-chamber...