I hope that this is the right place to post. if not please forgive me & move it. does any one have any info. on how to use either model of the 45/70's broken shell extractors, early one or the later one?
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I hope that this is the right place to post. if not please forgive me & move it. does any one have any info. on how to use either model of the 45/70's broken shell extractors, early one or the later one?
Sorry, I had to stop and pick my jaw up from the ground. I've seen .30 and .303 cal. broken shell extractors, but never one for a straight walled case. The .30 and .303 broken shell extractors are fed into the chamber using the bolt, and "grab" the inside of the broken shell casing, sort of like a reverse collet. The bolt is then retracted to eject the case extractor with the broken shell attached.
Would you provide pictures of the broken shell extractors that you hope to use.
Also, what rifle are you working on? Most .45-70 rifles, particularly the single shots, and even the lever action rifles, lack the camming power needed to use the type of extractor I've mentioned.
Some of the .45 Springfield Ordnance Manuals show the use of these devices. These manuals are available in reprint.
Here is a copy of the instruction sheet that came with my tool:
Attachment 112740Attachment 112741
They're actually quite well known. All you need to do is search google for the 45/70 separated case tool. Here's a thread we did some time back with 5madfarmers guiding. https://www.milsurps.com/showthread.php?t=10861&Quote:
Originally Posted by NORTHOF60
Here's another article outlining them. Broken Shell or Separated Case Extractors
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My understanding of things with the model 1873 Springfield and use of the 1882 Broken Shell Extractor:
If a .45-70 cartridge-case was stuck in the chamber, the broad end of the 'clearing-rod' would be inserted in the bore and the rod used to knock the case out of the chamber.
If the cartridge-case head had separated, the tool was employed in two ways:
1. If some of the 'broken' case was lodged forward of the chamber, into the rifling, the (fully assembled) tool was placed in the barrel muzzle. The screwed-in 'drift' entered first, the slotted-serrated end trailing.
The 'raised sections' of the tool would follow the three rifling grooves as the rod pushed the tool down the bore.
When the 'raised tool sections' caught on the case-mouth, the broad-end of the rod was bounced on the tool to knock the broken case out of the rifling and chamber.
(I would be very reluctant to use an 1882 tool this way, fearing possible bore damage).
2. If the broken case remained fully in the chamber, the drift was unscrewed from the tool. The tool was inserted into the broken case, slotted and serrated end first. The breech-block was closed on the tool.
The drift (small end first) was dropped into the barrel muzzle and seated with the clearing-rod.
Lightly tapping on the drift with the broad end of the rod would cause the tool to expand locking the serrations into the interior of the broken case.
The breech-block would then be opened and the broken case knocked-out of the chamber.