Why did LSA make No1 MkIII rifles throughout WWI?
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I have seen pics of a '16 Lithgow with mag cut off and volley's but that does not mean Bubba crept in and had a go! As my '16 Lithgow has the cut off but no volley sights
Thanks Rob, I wasn't aware of the earlier thread. So when all is said & done we will probably never know for sure why a lot of these 'late Mk3's' are LSA rifles. Interestingly I just acquired some pre & early war volley sighted rifles from another UK dealer; the latest one is a 1916 LSA. All of the others are RSAF & BSA & date from 1912 to 1915 inclusive. They'd been used for firing blanks in the film & TV industry for decades, but the bores are scrubbing up nicely with a little patience.
ATB
There is something called a helicoil insert, but I suspect it wont be in "odd" threads.
BA, yes...
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That way I think you could use the original screw (assuming its BA)
The original screw is in a special "Enfield" thread size.
There is a table of thread sizes for the various LE rifles to be found if you do a search for "Lee Enfield thread sizes" - I think it is by one of the blokes from EFD rifles.
Tapping out to nearest BA size would at least give you reasonable access to taps, but you would have to then modify a BA screw to fit the cutoff pivot hole.
Don't remember the thread specs offhand, although I'm sure it's been in a post or two, probably concerning No.4 Trials rifles, as they aren't the same. At any rate here's a photo of an SMLE cutoff screw:
https://www.milsurps.com/images/impo...DSC01563-1.jpg
SMLE cutoff pivot screw
Versus:
https://www.milsurps.com/images/impo...SC015351-1.jpg
No.4 Mk.1 Enfield mfg.
The SMLE having a rather finer thread pitch.
Lou, if you do decide to & manage to salvage the hole with the original thread then I have a few spare cut-off screws. Just pm me if you want one.
ATB.