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[QUOTE=Alan de Enfield;479318]For Lee Enfield Rifles there is officially no such thing as a 'Field Gauge', there is only 'Go' (0.064") and 'No-Go' (0.074")
SAAMI have decided to implement their own modern requirements onto historical British military rifles.
I imagine the Midway no-go gauge is well below the required 0.074" as the SAAMI specifications stipulate 0.067" for '30-cal' rifles.
Interesting. I measured several case rims and .056" seems average. My no-go gauge is like you said .067". Forster offers a field gauge and now I am curious about its dimension. The required .074" is .018" over the cases I measured.
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07-12-2020 05:54 PM
# ADS
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Originally Posted by
Gunsmithinflorida
Interesting. I measured several case rims and .056" seems average. My no-go gauge is like you said .067". Forster offers a field gauge and now I am curious about its dimension. The required .074" is .018" over the cases I measured.
Despite your forum 'name' I presume you are not familiar with head spacing rimmed cartridges, or, the Lee Enfield Rifles.
Your previous statement about using the 'numbers' for sizing the bolt-head is a little confusing to newbies if taken literally as it is not unusual to find a Number 0, or a No1, or a No2 bolt head larger than a No3 bolt head. The 'numbers' are supposedly indicative of size, but at the end of the day the actual dimensions are the critical measurement. You cannot just say replace a No2 with a No3.
Also, It looks as if you are measuring USA SAAMI cases rather than military 303 specification cases.
The Likes of Win & Rem are 'built to a price' and tend to be way down at the bottom end of the specification (the specification for Rim thickness is 0.054" - 0.064")
Maybe looking at this will show the difference :
One of Win's 'better offerings' at 58 thou & PPU at 62 thou
Last edited by Alan de Enfield; 07-12-2020 at 06:27 PM.
Mine are not the best, but they are not too bad. I can think of lots of Enfields I'd rather have but instead of constantly striving for more, sometimes it's good to be satisfied with what one has...
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