Here are the first three groups i shot with handloads with my 257 weatherby mag. I posted on here last week my group with factory loads in it was pretty good.
First goup is 71 grains of RL 25 COAL 3.365 This group measured .390
Second group is 72 grains of RL 25 group measured 1.8
Third group is 73 grains. group measured 2.2
I did not chronograph any of the shots. While waiting on my barrel to cool in between shots i took my daughters 22 Cricket and shot a group freehanded from 20 yards. It has a back peep and is a little difficult to shoot for a full grown person but i was quiet happy with this 3 shot group.