Ric Bibby's .40 breech plug specs

[jims]

Can anyone supply me with the length, dia, thread count etc. on his .40 plug? Thanks
I think it could be 5/8x18tpi and 1.5 inches long.

[lc]

jims 5/8x18tpi total length 1.6".
.25 long hex head (3/8 socket size)
1" of threads.
.150 no threads to bottom out in the barrel.
.185 snout were the vent liner screws in.
Didn't you get two from Rick Bibby RIP. When you bought the barrel I did.

[jims]

Thanks for the information. I did get two. Both slightly different but he said I could see what worked the best.