Thread: OCW Load Testing

When you say "projectile shows promise" what are you basing that on ? Consistent velocity, group size ?

Are you moving more to an Audette style string with velocity nodes or something else ?

To me the bottom line is that unless you are doing a pure velocity analysis every single load development technique requires prescision shooting.

Originally Posted by ebf

When you say "projectile shows promise" what are you basing that on ? Consistent velocity, group size ?

Group size; under moa straight away.

Originally Posted by ebf

Are you moving more to an Audette style string with velocity nodes or something else ?

Eben, my last three posts all attempted to say that I didn't think barrel whip was a significant contributing factor to my group size, so I wouldn't be replacing OCW with another method ( Audette ladder) that attempts to minimise the effect of barrel whip on group sizes !

Originally Posted by ebf

To me the bottom line is that unless you are doing a pure velocity analysis every single load development technique requires prescision shooting.

I agree. The original comment from PerazziSC3 was " you really need a rifle/scope/shooter combo (capable) of shooting very very tight groups to get a good indication of nodes ", and setting aside for now shooter & scope capability I just don’t think the rifles used by most shooters attempting OCW testing are capable of the level of precision required. Newberry is starting with precision rifles and attempting to make them more tolerant of load variation. He approaches OCW with a view that EVERY load in these rifles are capable of small groups if he could remove all round-to-round variation in his reloading technique. Finding and then loading for a “node” as he describes it is an improvement only in that it permits round-to-round inconsistency with the least detrimental effect on group size. People read his article and then use the same method to try and identify the smallest group from their rifles over a range of test charge weights - it is not the same thing.