Front action bolt collar

[Nailcreek]

Is the main screw collar the same between the No.1 and No.4 rifles?

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[ssj]

The part numbers I have are different. The new no4 collar I have is 12.90mm long, I'll measure the diameters when I get home.

[ssj]

The part numbers I have are different. The new no4 collar I have is 12.90mm long, I'll measure the diameters when I get home.

I have an inner diamter of 7mm and an outer of 9.5mm.