A few things to watch out for and to consider before you jump off the cliff into the water holding a concrete block. THERE MIGHT BE SHARKS IN THERE!!!.
Now then, having been a big weatherby fan for many DECADES I would just say that there are a few sharks to watch out for. First of all even though I do nto pay attention to my teyping a spelling I am a fairly decent engineer. The Wby shoulder is designed form a fluid flwo point of consideratain and nto from a structural streanght stand point. Downward pressure will defrom the double radius shoulder sooner than an angled shoulder. Wby (norma) brass is soft (although well formed) which further compounds the problem of the shoulder collapsing upon necking down. Even when it is not apparent to you that the neck is "not edxactly right " it probably is not right. This then need to "blow the case back out". Well by now the prinmer pockkets are getting a little on teh big side.
I would say that if you are gettign them for 30% of new price then you may be OK, but definitely keep them separated as "practice" rounds.
I have no expereince with the case you mention but I have dealt with the smaller cases and so you can take my adivec for waht you paid for it because that is about waht it is worth
Now then if any of teh anal engineers who can't get through loife if there is a typo can psot up their advice and we will see who knows their stuff.
The Smokin Fur Rifle Club