Labradar vs OCW Test

[ARTen]

I just ordered a labradar and have been researching load development using it.

Is it better to load for the OCW test and deal with the inconsistencies in muzzle velocity or would I be better off finding the velocity nodes with the labradar?

From the OCW Site:

"With any given bullet and powder combination, there
will be a specific amount of that powder which will
cause the bullet to exit the muzzle at the "friendliest"
portion of the vibration cycle. This does not necessarily
correspond with the tightest velocity figures, however."

Would a load found from the labradar velocity node be better then a load from the OCW test for long range shooting into the subsonic zone?

 

[Kadams1563]

Man I don’t know but I research what speeds most people run and find out what works.

I then load up 10 rounds in a few tenths apart, shoot over the chrono, find the flat spots.

That gives me my starting point. I then load in one tenth differences down about .2 and then about .2 past to see where my velocity stays almost the same.

After that I load some 5 rounds strings to group with.

I found my load of 42.2 of h4350 with a 140 eld (6.5creed) about 1000 rounds ago and never tweaked it. I just shot it over the chrono and realized it didn’t have the greatest number anymore but you couldn’t tell down range.

 

[TSpork]

I’m wondering the same thing

 

[Brentc]

I found my load of 42.2 of h4350 with a 140 eld (6.5creed) about 1000 rounds ago and never tweaked it. I just shot it over the chrono and realized it didn’t have the greatest number anymore but you couldn’t tell down range.

This is similar to the load I worked with 140 Elite Hunters. I found that 42.1-42.4 of RL16 produced less than 5 fps difference with bughole groups. So I put the charge at 42.2 and began knocking steel around. Velocity avg is 2830 fps.

 

[ARTen]

Update: The velocity nodes came pretty close to matching the OCW test results.

Did the OCW test last summer, found 41.1 of H4895. The velocity nodes appeared at 41 - 41.5.