Quote Originally Posted by Peter Laidlericon View Post
I don't know if therre were two specifications for HXP ammo. One for the uk MoD and another for everyone else but that made for us was made to the tighest of controls and specification. It had to undergo exectly the same checks and controls as our previous RG and RL stuff. Which it did and there were few if any complaints about its performance.

We also used it in our machine guns too

We also had a huge (42,000?) round batch of Privi .303 1978 Mk7z ammo inspected, tested, analysed and approved in order to use it in Vickers guns. We still use some. And the Government Scientist who did the tests for us said that it conformed exactly to our approved standards in every respect.

That included rim tolerance, hardness of primer etc etc as does the UK MoD spec HXP.

So if you are using this stuff then from that, it equates to the usual old UK MoD spec stuff...............
The HXP I have, has a flat base solid lead core bullet and is loaded with Olin Ball type powder, its boxer primed not berdan primed.
Near as I can tell its identical to Winchester "Whitebox" generic .303 ammunition.
Is there a type of MkVIIz that does not in fact use the MkVII bullet?
Only Britishicon military .303 loaded with other than cordite that I've heard of was MkVIIz and MkVIIIz.

Also I've found that HXP ammo was produced under contract for the British government in the 80's but this appears to have been 7.62 NATO rather than .303.