Thread: 7mm Rem Mag Troubles

Tempeture is the problem. When you get to or exceed max load data tempeture of the air, chamber, barrel etc will have a direct impact on pressure i.e. high pressure + temp = higher pressure. Max load data is set for various powders within certain temp values to produce 'x' pressures. Running extra pressure causes some powders to become tempeture sensitive and can become faster burning or explosive.