heres the rules;(edited for brevity)
SMALLBORE SILHOUETTE RIFLE:
Maximum weight 10 pounds, 2 ounces including sights. Any sights, telescopic or metallic may be used.
SMALLBORE HUNTING SILHOUETTE RIFLE
Maximum weight 8 pounds 8 ounces including sights. The only alterations to the rifle that will be allowed are epoxy bedding and the addition of a recoil pad that maybe adjusted for length of pull only and must be of the same dimensions as the original butt plate.
So the martini internationals would be too heavy at 14lbs. the 12/15, 12, or 15 at just under 10 lbs would be ok if you used the iron sights, but if you put a scope on it, it may be over the weight class limit.
None of them would qualify for the hunting class.
They are accurate enough, but too heavy.