Originally Posted by jwp475
Notice 10,000 CUPS lower pressure for the 45 Colt and if the 80% rule is used the 45 Colt is under loaded


Here is chrono results with a 4 3/4" barrel 45 Colt

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So what? The difference in pressure is meaningless. It's as meaningful as the few extra grains of powder the .45 uses to accomplish the same thing.

You just introduced two unnecessary variables. I'm not testing boutique factory loads. Boutique loads that we KNOW use non-cannister grade blended powders. Boutique loads that we know run right at or over industry maximums. I'm testing published handloads using data from the same source. Data, I might add, that correlates perfectly with Linebaugh's own data. If you can provide data that shoves the 335gr with more than 23.5gr of H110, I'll test it.

I'm also not testing FA's with minimum spec, linebored chambers and minuscule barrel cylinder gaps.