7mmx300 weatherby
- Thread starter bubbajim
- Start date
Isn't this very similar to the 7MM STW? Loading should be similar...although I think the STW might be on the way out due to perceived throat erosion...I know interest in it at the shop has died right off! Your wildcat sounds like an expensive way to arrive at the same place. Before the STW there was some interest in this cal. for 1000yd. shooting.
It's a 7 STW with a Weatherby radiused shoulder and more freebore. Think 160 gr bullets at 3200 to 3300 fps. A very good hunting cartridge. - dan
dan belisle said:
That would make it a shot-out 7 STW with a Weatherby shoulder. I took the opposite direction and throated my current STW very short. The 140 TSX is seated deep now, but I have a long way to go before I can't reach the lands anymore and still use the magazine. Think 140s at 3500-3550 fps.
LOL, yes, that would make it a "shot out STW". The Wby was around first, and I knew a few people who used it, along with a 7mm-300 Win Mag (called a 7mm Yukon by some) back in the day. velocities were all similar, however. The 7mm RUM gives you another 50-75 fps with any given bullet weight, at a large increase in powder, but then that's true of all these overbore 7mm's. Get yourself a 7mm-378 Wby, and then you can burn charcoal in it. - dan
- dandan belisle said:
Interesting. I found some pieces of 300wm brass at the range a few weeks back with split necks - necked down to .284 with a short neck and a sharp 'improved' shoulder. I wondered about those, it seemed to me that this is a worthwile conversion that could approximate 7STW velocities while still functioning on a standard-length action
dan belisle said:LOL, yes, that would make it a "shot out STW". The Wby was around first, and I knew a few people who used it, along with a 7mm-300 Win Mag (called a 7mm Yukon by some) back in the day. velocities were all similar, however. The 7mm RUM gives you another 50-75 fps with any given bullet weight, at a large increase in powder, but then that's true of all these overbore 7mm's. Get yourself a 7mm-378 Wby, and then you can burn charcoal in it.
Dan,
Charcoal might a little too fast burning, I'm thinking maybe oily rags?
A Rigby case would get rid of the belt. I think though that somewhere between the STW and the Ultramag the powder limit has been reached already. Mike, (Dogleg)
