Log In
March 20, 2009
Offline
I have been approached by a collector who has a 25-20 marked Model 1892 that clearly is chambered for 32 WCF. I am no gunsmith by any measure so let me ask. Ca a 25-20 bore be increased to 32 WCF caliber with being relined?
Michael
Model 1892 / Model 61 Collector, Research, Valuation
April 15, 2005
Offline
Yes it can. A simple rebore, rifle, and rechamber. Going the opposite direction (from 32 WCF to 25-20 WCF) would require a liner.
Bert
WACA Historian & Board of Director Member #6571L
August 14, 2021
Offline
Unusual that somebody would do that level of gunsmithing and not remark the barrel. It would be prudent to make a chamber cast and check the rifling.
January 20, 2023
Offline
Bert, if I have the groove diameters right [.313 – .257], would reboring/rifling from .25 to .32 remove most pits from a corroded 25WCF barrel?
EDIT: From .250 bore to .300 bore would only take .050 from the lands.
I suppose it would depend on the depth of corrosion but .050 isn’t a lot of metal removed. I thought you might have seen it done.
I’m lucky to have a non-corrosive Era 92 but several .25s I’ve seen recently are gruesome.
- Bill
WACA # 65205; life member, NRA; member, TGCA; member, TSRA; amateur preservationist
"I have seen wicked men and fools, a great many of both, and I believe they both get paid in the end, but the fools first." -- David Balfour, narrator and protagonist of the novel, Kidnapped, by Robert Louis Stevenson.
September 19, 2014
Offline
Zeb, In my limited knowledge, rifling isn’t that deep. Often its .003 to a generous .005. Old lands would perhaps challenge the process as a boring device may catch irregularly with the old lands in place, but I am guessing there. I have never known anyone to measure depths of pits, tho. Tim
January 20, 2023
Offline
It would take a small roach trained to use a miniature depth micrometer. They seem to have the intelligence but too much attitude.
- Bill
WACA # 65205; life member, NRA; member, TGCA; member, TSRA; amateur preservationist
"I have seen wicked men and fools, a great many of both, and I believe they both get paid in the end, but the fools first." -- David Balfour, narrator and protagonist of the novel, Kidnapped, by Robert Louis Stevenson.
