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Other forums keep beating the drum about watching for pressure signs. Any new load development should "start low and work up". Good advice in any high pressure cartridge, but what about lower pressure cartridges? A 300 Win Mag operates at around 65,000 PSI but a Marlin lever gun operates at 44,000 with most cartridges. Are both guns going to demonstrate the same signs as they approach maximum respective pressures? The Marlin will show flat or blown primers, case sticking, brass flow etc. at only 50,000 PSI or so and the 300 WM doesn't always show this at pressures in excess of 70,000 PSI?
If I "start low and work up" with my 30-30 or 35 Remington, watching for pressure signs, exactly WHAT am I looking for? 70,000 PSI would be a one time thing for my Marlin or Winchester rifle and maybe for me as well.
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