Please listen to what Mark_MI says and be exteramly leary of the RGMartin advise to load slow burning powders at -10% minimum. Slow burning powders are for hot loads in things like the 270 and the magnums. RG is correct in that it slowly builds pressure, but that is not a good thing in underloads, espically with cast bullets. What can happen with a underload of a slow powder is when fired the bullet slowly moves foreward, hits the rifeling and stops ( a hot load won't stop). By this time the extra volume and residence time let all the pressure go at once, it is called secondary detonation. Mike was optomistic when he said it could bulge champers. It can also cause serious injury to your boyish good looks. Or worse.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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