I'll remember to try that Semi.
I changed my mind, i will try 60gr APP 2f instead of 80. Just start low and try 3 shots and see how it goes.
Heres some pictures. My nephew and I built that fireplace about 5 years ago. Just mud, straw and rocks we hauled up. The heat it throws, will run you out!
Lead, mold and dripper being heated up.
After,
6 shots with JSG 2f. I tried cool down between each shot on 3 and then 3 shots with load and fire. Didn't help a thing.
5 shots total with the first 2 being adjuster rounds. I was surprised to see how high the first one was with only 60gr JSG.
Its right on the line of being 2" high @ 20 yards so, that may be just a bit to high @ 50 yards.