Interesting day at the range today!!
I have my first ever case burst and difficulties with zero. I figured most all of it out.
The case burst is a mystery, but had to be a miss charge, but I pulled and measure all remaining loads. ALL where perfect right on 25Gr's of a powder that looked just like 4064. I tossed the powder, saved the bullets and cases to load later. I was not hurt and the firearm is also undamaged.
I had loaded up three different 300gr 45 cal bullets, all three where the same 28gr load of H110 with a CCI 450 primer. The first was the Sierra, shot very well, hitting center of target at 50 yards. The Speer 300 GDHP's hit about six inches low at same range. Hornady 300 XTP hit about one inch lo. Again at 50 yards.
Then I had the same Speer 300 GDHP bullet with a stiffer charge of 32 Gr's of powder. This one hit a full foot low at 50 yards. not the faster velocity will result in a lower impact point but a full 6"
Then the last load, a 200gr FTX Hornady bullet and 35Gr's of the same H110 powder. These shot exceptionally, but hit exactly dead on at 50 yards. I cannot figure that one, these should be the fastest load.
CW