Ladder and ocw in one

[GrantB]

So I shot an ocw and ladder test at 1000 yards with zero wind and took this data. What do you think 338 Lapua 300g otm with retumbo

 

[Milo 2.5]

I do something different, 12-29" groups at 1K not much to talk about.

 

[spife7980]

I think 93 is the clear winner in every aspect but I agree that I would keep working on it, especially a 338 that can resist a bit of wind.

 

[Milo 2.5]

Maybe I was too harsh, do you have seat depth nailed where it groups decent at 100 yards?

 

[GrantB]

No just backed off 15 and went for it

 

[Milo 2.5]

No just backed off 15 and went for it

This is what I would do, try find your seat depth at 100, seat depth usually controls horizontal, then adj your charge where vertical is held. Then move out and fine tune what you going on.
if you are grouping inch and a half at 100, going to look like crap at 1K.

 

[RampedRaptor]

Use 93.0 grains and then test seating depth.

You probably already know this but use
fired brass, not virgin.