Regarding the 264 win mag. I have read on several occasions that the original factory load with the 140 gr bullet was using a double diameter bullet. The idea was to minimize bearing surface to mitigate pressures.
Not aware of any double diameter bullets used today. VLD style bullets tend to have a short bearing surface, which might explain how some are getting higher than published velocities with their 264 Win mag. Might be hard to prove as the majority of handloaders are not using a strain gauge to verify pressures.
Then you are not paying attention to detail, Remington factory 140 gr loads are still 2 diameter bullets in the 264 Mag ammo and you might not believe it but they use the same bullet in their 140 gr bullet loading of their factory 6.5 Creedmoor ammo. Winchester still uses the 140 gr 2 diameter Power Point in their factory loads. Your second sentence is on the money, plus the Westerner had a 26" barrel, after that the short barrel whiners screwed up the 3200 fps possibilities. There are several bullet suppliers who still sell the 2 diameter 140 gr .264" Corelokt as a component by the 100 ,Black Hills Shooter supply? MB
