I've pushed the envelope some myself. I have a deer rifle that my very good friend and fine riflesmith, Ernie Shane, and myself designed over many a nights late oil and long beer. It's built on an Oberndorf pre WWII Mauser action. The Caliber is 257 Durham Jet based on a blown out, sharp shouldered and necked down to .257". I worked over two years to find a safe pressure load that would move a 100 grain Nosler partition bullet along at 3200 fps out of the lil 20" tube.
Ok, I was teasing the dragon. As a result of long and careful work I have a rifle that is, with some alchemy on my part, the best balanced Wisconsin deer killer in the woods. It is topped with a 1.5-6 Kahles 30mm glass sight. The rifle is light, death ray accurate to 300 yards and does consistant one shot kills. I'm saddened that I will not hunt this year cuz of my MVA.
Now, if I were to push the envelope with a C&B revolver, it would be a Ruger Old Army. I'm not throwin' water on anybody elses campfire here cuz I'm speakin' strictly for myself. I do have a load for my ROA via Kirst Konverter that moves a 250 grain PRS bullet along at over 1000 fps over my Ohler 33 chronograph. That's a lot of energy and I don't much enjoy shootin' it, even two handed. I won't give the data here.
When it comes to SASS main matches, I want the flames, smoke and boom and fragrence. I like a warthog load, but NOT a magnum load. FWIW, I shoot the same ammo in my rifle that I shoot in my pistols just to keep things simple.
When I shoot the ROA with the C&B cylinder, I load 30 grains by volume of FFFg under pre lube/sized .454 DD/ROA bullets. This charge gives me all the thrill I desire in the testostrone department. I do intend to give the same VOLUME of 777 a go and I wouldn't consider it too strong. If I were shooting a Colt 1861 replica, I would start at least that low and work up from there real careful. I do know what to look for in the way of high pressure indications in cartridge guns. I'd hate to be holding a C&B gun that had no way to tell me that the pressure was getting too tall till it came from together in my hand.
So, what are the early signs of too much pressure in a Colt 1861 replica?
Thanks, and no offense ment. Just tryin' to say "please be careful".
DD-DLoS