JR -70 model 54 and preWar 70 standard cartridges #511111
JR-70A Model 70 above 66,xxx standard calibers #511112 as well as 338, 458
JR-70AH Model 70 H&H above 700,000 #511113
JR-70A Magnum model 70 H&H above 66,350 #511114
JR-70 Magnum model 70 H&H below 66,350 #511115
There is a Target model base as well, I think or it may be the same as the H&H???
ETA: Since this is a transition model H&H it may have zero, one or two holes in the rear bridge from the factory. Also it may have been a zero hole model and drilled for the right or wrong base after the fact. It kind of looks like the hole is a little forward for an H&H; perhaps not? Perhaps they drilled it for a JR70-A?
Last edited by sbrmike; 07/14/19.
