PP, a Ross can handle almost any pressure you put near it, so never fear to shoot it.
Mk. VII (or 7) bullet WAS impact-unstable, as it was designed to replace the Dum Dum series of expanding bullets. The Mark 6 bullet was just a rehash of the "obsolete" Mark 2 and the Dum Dum series came between them. They wanted the nastiness of the Dum Dum bullets but full-jacketed because of the Hague Convention, which banned soft-points and hollow-points. It became the new standard in 1910 and is still in production in some places.
The Mark VIII (or 8) was designed between the World Wars and was specifically an extended-range machine-gun loading: not much more in the way of velocity, but the boat-tailed bullet kept it going very nicely, especially after it dropped below Mach 1. Pressure was only a ton higher.
I have shot Mark VIII (or 8) ammo in a 1907 SMLE rifle, also have shot this rifle with nasty FN loads that came in a box marked "Pour FM Bren seulement", which sounds quite nasty to a Prairie gopher like me. No problems in any rifle in decent condition, with the possible exception of a Lee-Metford. Your Ross will digest any or all of it and thank you, possibly by wagging its sights when you aren't looking. Keep her happy!
Have fun.
Mk. VII (or 7) bullet WAS impact-unstable, as it was designed to replace the Dum Dum series of expanding bullets. The Mark 6 bullet was just a rehash of the "obsolete" Mark 2 and the Dum Dum series came between them. They wanted the nastiness of the Dum Dum bullets but full-jacketed because of the Hague Convention, which banned soft-points and hollow-points. It became the new standard in 1910 and is still in production in some places.
The Mark VIII (or 8) was designed between the World Wars and was specifically an extended-range machine-gun loading: not much more in the way of velocity, but the boat-tailed bullet kept it going very nicely, especially after it dropped below Mach 1. Pressure was only a ton higher.
I have shot Mark VIII (or 8) ammo in a 1907 SMLE rifle, also have shot this rifle with nasty FN loads that came in a box marked "Pour FM Bren seulement", which sounds quite nasty to a Prairie gopher like me. No problems in any rifle in decent condition, with the possible exception of a Lee-Metford. Your Ross will digest any or all of it and thank you, possibly by wagging its sights when you aren't looking. Keep her happy!
Have fun.
