I've been offered a 77/44 for a pretty decent price by a member of another forum I frequent. It is a wood stocked version. According to the Ruger site the Walnut stocked version weighs 5.2lbs and the plastic stock also weighs 5.2lbs. Is this correct? It just seems unlikely to me that they would both weigh the same. Also they say that it has a 90 degree bolt throw. Does this interfere with scope mounting? Lastly, do the rotary mags work pretty well or are they prone to jamming.