No7 bolt head ?

[tatou]

So is anyone able to confirm what bolthead my spare one is? I'm looking to move it on but no point if I can't positively identify what it actually is! Cheers.

Judging from the picture Roger Payne posted it is highly likely a No6 bolt head.
And judging by the lack of responses i would say it is rare (not many people know what it is) so that would support a bit the theory of it being for a No6 .22 rifle