Jim Watson
Member
I can confirm that you are entirely wrong.
Any currently manufactured reproduction Highwall (or other quality repro of a 19th century single shot) is plenty strong for standard smokeless loads of the caliber chambered. The Italian imports are proof tested for the currently manufactured smokeless ammo. That is 28,000 psi for .45-70, which will get you a 400 grain bullet to 1800 fps. If you want more, the Uberti is made in .30-40 Krag and .405 Winchester, as is C Sharps plus .444 Marlin.
My Browning BPCR .40-65 says "black powder loads only" not because the action is weak but because there is no SAAMI pressure standard for the caliber and their lawyers were not willing to take on the liability of letting you pick for yourself. Since it is the same gun throughout as the .45-70 you can see that it would take any sensible load just fine.
Any currently manufactured reproduction Highwall (or other quality repro of a 19th century single shot) is plenty strong for standard smokeless loads of the caliber chambered. The Italian imports are proof tested for the currently manufactured smokeless ammo. That is 28,000 psi for .45-70, which will get you a 400 grain bullet to 1800 fps. If you want more, the Uberti is made in .30-40 Krag and .405 Winchester, as is C Sharps plus .444 Marlin.
My Browning BPCR .40-65 says "black powder loads only" not because the action is weak but because there is no SAAMI pressure standard for the caliber and their lawyers were not willing to take on the liability of letting you pick for yourself. Since it is the same gun throughout as the .45-70 you can see that it would take any sensible load just fine.