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Identifying a firing pin
How can I tell the difference between a No. 1 firing pin/striker and that of a No. 4?
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05-29-2014 06:32 AM
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The rear of the No1 is flat, the No4 is rounded.
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Thank you 5thBatt. Mine is rounded with a notch on the right side. Oh, I looked again and the notch is on the left..........grin.
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The threads are different. I think you'll find some rounded and some flat regardless of whether No.1 or No.4.
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The Following 2 Members Say Thank You to Brian Dick For This Useful Post:
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The threads are different. I think you'll find some rounded and some flat regardless of whether No.1 or No.4.
Brian, do you have some reference to that? it states in Ian's book TLE Pg 396 that the No4 is rounded & No1 flat & that has been my experience, i do have a No1 with a rounded firing pin but it also has a No4 cocking piece which as a single unit is interchangeable.
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We had boxes of No1 and 4 strikers and I agree with Brian. There were rounded and flat of each sort. THat of itsel;f is not an identifying feature The difference is in the thread form.
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We had boxes of No1 and 4 strikers and I agree with Brian. There were rounded and flat of each sort. THat of itsel;f is not an identifying feature The difference is in the thread form.
Interesting, thanks for that Peter, always good to learn
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Advisory Panel
They will interchange but only with respective SMLE or No.4 cocking pieces installed as a unit.
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Thank You to Brian Dick For This Useful Post:
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They will interchange but only with respective SMLE or No.4 cocking pieces installed as a unit.
That's what i was trying to say but poorly re-reading my post.
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Striker and cocking piece threads:
No4: 1/4" x 28 TPI BSF (55deg, Whitworth form)
No1: 1/4" x 30 TPI Enfield Special
Both are made to a somewhat closer fit then your average hardware-store screws and nuts.
Last edited by Bruce_in_Oz; 05-31-2014 at 09:31 PM.
Reason: But wait, there's more......
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