I have not. I use the titegroup with my Limited SV gun (uspsa guy). I have some VVN320 around I could try it with that, but I'm pretty happy with titegroup. It seems to be relatively clean burning and it's fairly inexpensive.
Reading in my serria book, that clays builds excessive pressures in COLDER climates.
They go on to say that usually powders do the reverse, colder= less pressures.. where as clays, if your running high pressures to begin with, and you worked them up in warm weather, and you shoot them in the cold, your pressures will jump considerable.
I'm alittle shy of clays for that comment, and am going to go after tightgoup, but clays was my first choice.
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