OCW opinions...?????

[Marc Gauthier]

Mean radius

 

[L.Sherm]

Those are pretty typical factory gun groups. I would back up to 300 and shoot a group, your right at .5 moa.with some of those groups.

 

[User4302021]

If I remember it was 2,725

With Varget, in this part of the pressure curve you can figure an average of about 5fps per 0.1 grains. This puts you somewhere around 2735fps at 45.5 grains.

 

[User4302021]

Exactly why these ladder type tests are a waste of time, components and barrel life, SHOOTER ERROR. Until you can LOCK a gun down and take 99% of human contact out (like the handguns Ransom Rest) These test will really not prove anything monumental . always over- thunk,

Take 46.1 Chrono it, if speed is good and you can hold it steady and repeat, load em up and shoot

Just my opinion

When done correctly and efficiently, this will result in a suitable load with a particular combo in less than 50 rounds. Assuming a suitable load is to be had of course. There are no guarantees a rifle will like a particular combo, but this tells the tale fairly quickly.

 

[Kampfjager]

Mean radius

I don't understand what your saying? None of these groups are under .5 MOA....?

 

[ar10ar15man]

when you do finally get your LOAD,
lets us know just how many rounds you fire/fired?

 

[Kampfjager]

when you do finally get your LOAD,
lets us know just how many rounds you fire/fired?

Right now I'm at 27....

 

[Johnslam]

Would another powder choice help any?

 

[Kampfjager]

Would another powder choice help any?

Varget is pretty much the standard but possibly.....

 

[User4302021]

I don't understand what your saying? None of these groups are under .5 MOA....?

Mean radius is to group size, as SD is to velocity. It is the average deviation of each shot from the group center.

 

[birdiemc]

I have a rem 700 .308 win and about the only thing I could get to group is 168smk, so you're doing better than I was. I've read through everybody's responses and I have to say without printing the target and drawing lines all over it, the 45.5 looked like a good one as the 46.3 for doing a true OCW development. I've been playing with OCW myself and I agree with the advice that 200-300yds would probably yield better data for interpretation. Havent tried it myself yet, cuz I can step out the back door of my shop and shoot 100 yes, but I think it would be worth a try.

 

[Buzzsaw]

what is OCW?

 

[Kampfjager]

Optimum Charge Weight..... it's a method designed by Dan Newberry for finding a charge weight for a particular rifle

what is OCW?

 

[User4302021]

what is OCW?

Are you being serious...or sarcastic?