First rounds ready! Tested Mar 10 - post 15.

[samsplacci71]

Using colored sharpies on the tips of the bullets (not down far enough to touch rifling, but as far as practical) is a good way to track which bullet has what, and also it leaves coloured holes in the paper, so you can see the red grouped better than the green, etc.

Great idea!

 

[TacticalTrunkMonkey]

Went out today with some more rounds at 40grs. They went pretty good, my best 5rd group is below. It's on the wall because it's the best group I've shot so far, I just need to get this group with some consistency and I'll be happy. I hope I measured it correctly, sorry the photos are blurry, the callipers are still readable.

 

[.Ben]

that's looking good right there!

 

[HeavyTread]

It looks like you are measuring from the outside edge of each hole. Better to measure from the centre (or measure from the outside edge and then subtract 1 calibre size)

Here you go:

and

I hope I got the calibre and distance right. I'm assuming .308 @ 100 yards and the target is 4 inches wide in total.

That's a .466 MOA group, according to my analysis (strict, not '1" at 100 yards' MOA).. or .136 MRAD (strict trig MRADs, not standard NATO).

Nice.