Another 50 shot practice session this
morning...made up a stack of 2"x 6" cardboard rectangles to simulate the body size of a squirrel instead of just shooting boring bullesyes...stuck a row of them in the crush stone at 20, 25, and 30 yards like a squirrel sitting up..."killed" all those squirrels except one, and that was because of the loose screw behind the buttplate...the targets were too big at that range really. Found an empty .12ga hull and picked that off at 25yds so the .40cal is really laying them in there.
50 shots is about all I can handle in this heat & humidity, so I'll go back Monday and see if its shooting fast & flat enough to give me the same POI at 35 & 40yds with the same sight picture...my goal is to drive it fast enough so I have a total 1.5" verticle zone POI...a "point blank squirrel zone" 3/4" above to 3/4" below POA out to 40yds...achieving that consistently given my own limitations of shooting skills, 65 year old eyes, primitive iron sights, etc, might be difficult, we'll see.
I have a steel A-frame with a little 2" steel hanger target I'll be using from now on...may touch it to the grinder and trim it down a whisker smaller...the steel cuts down range time not having to fiddle with paper targets, walking back and forth in the hot sun, etc.
I will say this...I realized I've definitely spoiled myself these past 2-3 years getting round bottom groove barrels in .45/.50/.58cals...one wiping patch and the bore is clean. But this .40cal GM is a regular straight groove barrel and it takes a bit more work after each shot to get the bore back to a clean-cold-first-shot-hunting barrel condition. Once I've finalized the sights/POA/POI for hunting barrel condition, I'll experiment with some amount of liquid lube that will give me the same POI without wiping.
Anyhow, stumbling across his .40cal Late Lancaster was a real find, essentially brand new, drop dead gorgeous, and I can't get over how well it shoots...the 13/16" x 38" straight barrel is not nose heavy yet heavy enough to hold on a target...never a mis-fire, never a problem, just a terrific Flintlock that so far has performed flawlessly...