The most frustrating loads
 

So speaking of pressure and velocity I shot this group last night. This is the first load I have shot with these components together. Bad idea, but I know the rifle and all the components in the rifle so I thought I’d cheat. Again, a bad idea. Here is the result. Alliant says I’m about 20-30 FPS fast. There was no other indication of pressure. ES and SD are almost nill but I need to sit on this one for a while and mull it over. 20 FPS the other side of the manual and I’m grinning ear to ear.

https://i.imgur.com/yzvDoU7.jpg

Sometimes things just work out right off the bat!:)
Cat

Like winning the lottery (with insider info). What is the barrel length?

24”

I’m thinking I should knock it back a half a grain. That may mess things up.

I would shoot it again when it gets to 30 C, measure velocity and ES and if it is still grouping like that with no pressure signs, I would say thanks to the loading Gods and call her good. Might play with the seating depth a little to see if I could get them to look like one bullet hole. :) Got to love it when a plan comes together.

I would knock it back 1/2 gr to see how stable the load is. I like loads that don't notice 1/2 to 1 hr change in the powder charge, as they seem more stable with changing temperatures.