I was just looking at some QL data on another site, involving the 162 and 175 gr bullets with newer powders like MagPro, Retumbo, etc.

The velocities were the same/same I've been seeing from the cartridge for years with the 160-ish gr bullets at a bit over 3000 fps,and 175's maxing at a bit over 2900 fps.These were all at pressures of what QL says is around 59,000 psi.

By the time you bumped past those velocities QL was screaming for you to stop as you got over 60,000 psi.

I understand QL is a "model" ut it's still interesting how close it is to what I have seen from quite a few rifles of my own over the years. I always used to say when you see 3050 with a 160 from a 24" barrel, you've arrived. smile

No wonder I have not had a lot of problems with the cartridge all these years.... shocked




The 280 Remington is overbore.

The 7 Rem Mag is over bore.