They talk about 209 primers. I have tons of shotgun primers, are 209 Shotgun primers the same or are ML 209s different.
They are all basically the same except for the potency or flash. Your shotgun primers will work fine, for now but you might want to experiment with different brands, later. ..
You are going to have faster twist and while that's fine if you want to use you minnies. I have never done this but don't see a problem. ...
Instead, might I suggest, casting and using a pistol bullet and sabot combination, like a .44/50 or a .45/50. ....
I'm Cheap and;
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