It can be a patience game that's for sure. I'm going thru it now with a 338 Lapua. Groups with factory American eagle 250gr were terrible. 3 moa with 6 inch flyers. So far loading 250gr SMK's over retumbo it's getting better but still only 1 moa at 200 yards. I'd like to be able to smoke groundhogs at 500 or more and that's not gonna do it so I'll keep burning powder and killing paper!
-
If you are being asked to change your password, and unsure how to do it, follow these instructions. Click here
Ocw load development help
- Thread starter Nmbowhunter06
- Start date
Help Support Long Range Hunting Forum
DUSTY NOGGIN
Well-Known Member
those groups could be all load related , but some appear to be scope related ,parallax is out of adjustment ??
Nmbowhunter06
Well-Known Member
- Joined
- Dec 8, 2017
- Messages
- 76
It's not parallax I know how to properly adjust my scope but thank you. I got it figured thanks
DUSTY NOGGIN
Well-Known Member
you said new. i didnt know how new. no offence intended
got any pics of the 77.3,77.5,77.7,78.0.
Nmbowhunter06
Well-Known Member
- Joined
- Dec 8, 2017
- Messages
- 76
No offense taken I'm only new to the ocw method. The pic of those groups is in my original post.
m249
Well-Known Member
Do you have access to a chronograph? I find that using a chronograph for this works much better then just looking at groups. With the chrono you can see where the velocity is similar from each load.
Last edited:
tsyarnall
Member
77.5 and 77.7 looks like a place to work on. Also, looks like another node at 75.0 is possible.
