bfrshooter
posted this
13 September 2008
As long as the load will chamber, try it for accuracy. Being that large you can try different sizes too, Maybe the gun would like another size better. Be sure to work powder charges for each change in boolit size, don't just grab the highest load.
I would not use any kind of loose checks or wads with fast powder or a powder that does not reach the boolit because there is a gap below the boolit that the check can slip down into. I use a pinch of dacron over 4759 in my revolver, seems to be more accurate then without it.
The only safe way to use a loose wad is if it is on the powder and against the boolit, like a compressed load of BP.
You can ring the chamber if a wad slips.
With dacron, you just push it in with a dowel or pencil but don't compress it. I let the boolit push it down when I seat. Maybe 1/4” is all. It weighs nothing, doesn't burn or melt and compresses to almost nothing. All I use it for is to hold the powder down in the case. Powders like Unique should not need it. Just load with nothing under the boolit.
By the way, I use a Federal 155 LP mag primer in my revolver. More accurate then the LR primer. For my BPCR I use the Federal 150 LP primer and a newspaper disk inside the case over the flash hole. It keeps BP from plugging the hole.
Feel free to experiment with all primers in the 45-70 as long as you are not loading near the top of the load charts with slow powders.
I would not use LP primers in old, soft guns either because they can peen the firing pin hole when they set back. But very light, low pressure loads should not hurt.
I love the 45-70, you can do anything with it from mild to wild.