G'Day,
Is the procedure for breaching up the No 1 different to the No 4, as after reading the article by Mr Peter Laidlericon I am confused as to which face is the breaching up face. The No 1 breaching up face is the end face of the barrel, as the shoulder is actually clearance. To machining for instance .100" off the breaching face would actually shorten the chamber and remove the extractor slot.
Also in regard to using steel shim, page number 37 in the Ian Skennertonicon book "Australianicon SMLE Variations" list the part number B2BBA440 and BBA4401 for .003" and .005" Washer, shim, steel. Is this an Australian practice only to fit steel shims for breaching? I agree 100% with the statement about peening the shoulder over as the local gun dealer uses this method with various degrees of success. Locating the barrel of the shoulder would result in clearance at the breach face.

Hope this makes some sense,
Rastis.
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