Uh-Oh
Yooper! Didn't you know there's a penalty for posting cartridge rifle groups? Now you have to post at least two ML groups within 48 hours.
I used to use IMR4831 in my 25-06. It was my favorite powder. A few years ago I tried Reloader 19 based on an article in Guns & Ammo. It was great and is all I use now. 54 grains under a 100 grain Barnes Triple Shock gives me 3200 fps (chronographed) and 100 yard groups like the one you posted. DAMN! Now I have to post a ML group.