Thanks for the info, guys.
The 40 grains 3031 is a little light, because there was residue on the cases, indicating the case wasn't going out to properly seal the pressure. I thought I would up it a couple of grains.
In particular in loading light, it is often hard to duplicate what you did on another day.
A few years ago when I had my other Marlin 1895, I did a fair bit of testing for best 100 yard groups. One day I sat at my loading bench, wondering what to try. I have a quantity of 420 grain bullets, some flat base and some gas check. So thought I would make a test between the two, with a very light load. But what load?
I have the Lee box of yellow scoops, it was sitting open in front of me. I looked at the 1.6 gram scoop and thought, I bet that full of Unique would be a god load.
It turned out to hold 14 grains of Unique.
So I loaded five with the gas check bullets and five with the flat base.
I marked everything down in a note book, but now I can't find the note book! What I have said here is from memory, but I can't remember whether I used a filler, or not.
Anyway, here is the target of the ten. I shot the gas check first, circled a pen mark around them, then fired the five flat base.
The white inner mark on the target is a 2 inch square. You'll notice there are a couple of enlarged holes, where a double went in.
I was pretty thrilled, thinking the 1.6 gram scoop was the magic formula.
But I was later completely unable to repeat it! The next groups were never nearly as good!
