Re: 300 RUM & 230gr Berger Hybrids
My rifle builder told me that several times, and others who shoot ultra mags in my county have told me of their own experiences shooting at our range, having no problems with pressure, and then driving up 4,000 feet in elevation and getting a stuck bolt with the same loads. I have also read many threads on this website where shooters draw distinctions between pressure signs at differing elevations. It seems that elevation is widely believed to impact pressure. Can't wait to test it out for myself when weather permits.