ann brezinski
Well-Known Member
I saw this on other forums.any thoughts on loads for this?
an y one using this round and would like to talk about it.
gary b
an y one using this round and would like to talk about it.
gary b
I have had a 7x300 wby and I consider it a very good cartridge, the only negative was that case life was short but could be extended through annealing. As for gunsmiths having a reamer, if you check some of the gunsmiths in north central Pa. Mark King, Bob Wolfe, Eric Springman and others you will find that most have 7x300 wby reamers, the 7x300 originated in the north central Pa. area invented by Howard Wolfe. I formed cases using norma or weatherby brass and redding 7x300 wby dies (non bushing) these dies are readily available from redding and I think rcbs also makes these dies, you don't need to use dies from other calibers to form the brass just buy the redding or rcbs dies and you are good to go. The redding offers a 3 dies FL, neck, and seater die for the 7x300.Based on case capacity of the 300 weatherby and the 8mm mag these two are 99 and 98 respectively. link to capacities:Case Capacities That would mean a 7mm/300 weatherby and the 7 STW would be ballistic twins.
If you already own the 300 weatherby redding bushing/ body / FL die sets you could use them to work with the 7mm quite easily. Only other reason I can think of for using the weatherby version would be brass availability. And perhaps the cool double radius shoulder.
I doubt many gunsmiths would have the reamer so that would be an additional cost. But you could get the reamer made to your specs.
Maybe wby will come out with 7x300 wby brass like they did with 6.5x300 wby brass if so that would really put the 7x300 wby on the map.I have been shooting one for a few years now. Ever since 7stw brass started drying up. 180 berger hybrid at 3100 with imr 7828 fairly mild load. Very accurate. 300 weatherby brass is plentiful and it is a ballistic twin to the stw. I think it ranks right up there with the best of the 7mm cartridges.
Maybe wby will come out with 7x300 wby brass like they did with 6.5x300 wby brass if so that would really put the 7x300 wby on the map.
Joe
When forming cases from another caliber I believe they should be fire formed with a slightly milder load, by doing this you get longer case life and better accuracy. This was told to me personally by Howard Wolfe the gunsmith and inventor of the 7x300 wby.With 300 wby all ready available and with the 6.5 WBY up and comming, why would you even care if there is 7-300 brass? It takes about 3 seconds to make one.
Just sayin.