Hodgdon powder

ZG47

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Arms manufacturing being one of the oldest manufacturing industries, often used dimensions, thread pitches and all manner of "standards" well before the development of engineering standards in the wider community hence the need for the "Enfield Inch" and some of the weird threads encountered on Lee Enfields etc. In Europe, Paul Mauser did his design sketches in metric, and then converted to Imperial approximations because his machine tools were made in England (which explains some of the odd dimensions, Whiworth thread forms and non-standard TPI). Threads on Siamese mausers are a combination of German Mauser (psudo-whitworth) and Japanese armoury specials designed prior to the adoption of either imperial or metric measuring systems.
Thank you. I have now been further educated. If you want a screw or bolt for a very old BSA air rifle you go to John Knibbs OR possibly his successor by now. Mr Knibbs bought up BSAs surplus stock of parts when they stopped making firearms, that stock including parts for very old air rifles. I suspect that pretty much all the firearm parts are long gone but if you own an antique BSA airgun, that is your source of original parts.
 

ZG47

AH enthusiast
Joined
Jan 20, 2015
Messages
491
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352
Location
Wellington, New Zealand
Member of
NZDA, NZMSC
Hunted
New Zealand
Getting back to propellants, Hodgdon sells ADI Benchmark 2 (now called BM2) as Hodgdon Benchmark BUT they do not sell Benchmark 1 (now called BM1). BM1 is a good .222 Rem propellant and has long been renowned as the best propellant for .444 Marlin, etc, i.e. better than Reloder 7. The Yanks do not always get the best stuff! :)
 
 

 

 

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