Most of our readers are already in the know, but let me add this for anyone who needs it...
There are MANY different guns chambered for the century-old 45-70 cartridge, and some of them are significantly weaker than others. All loading manuals carry at LEAST three different levels of loads for the 45-70, divided by specific gun models.
Using the wrong data for the gun is EXTREMELY dangerous. Use data ONLY after double-checking it with a current manual, and then triple-check that it is appropriate for the model gun you are using.
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