OCW and ladder testing methods

[Sub-Moa]

So I have always used the ladder method when working up a new load. I have been reading a lot about the "Optimum Charge Weight" method and it makes a lot more sense. So my question to you guys is who used the OCW method and who uses the ladder method?

I'm going to take my current data and try to derive a half assed version of the OCW method. When I get more time, I'll cross reference the two methods and report back here.

In case you are not familiar with the OCW method: http://optimalchargeweight.embarqspa...iew/4529824091

[BLR81]

I actually use both methods. Starting with a ladder test, done in 0.3gr increments at 300 yds. Look for a 3 shot consecutive group that shoots tighter vertically than the rest. Then take that group and do the OCW in 0.2gr groups.

So when I find the Ladder test group with 3 shots over a 0.7 gr group, I have narrowed the OCW test down to 4 or 5 different loads starting just below the ladder group and ending just above.

Using just the OCW you can end up testing 3 times as many load and shooting 5 rounds of each. With the ladder test I shot 20-21 loads of one shot each. And, narrow my OCW down to 5 loads of 5 shots each.

One very important point about the OCW which pertains to the Ladder test as well.

The OCW load development plan works best with rifles and shooters that are actually capable of MOA accuracy.

You can waste a lot of time if you don't have the marksmanship skills to make accurate shots. Poor breath and trigger control will negate the benefits of looking for the best load for your weapon.

A three MOA marksmen shooting a two MOA rifle will never find a true one MOA load. If you aren't completely confident in your skills and your rifles ability, don't waste your time. Just find some decent load and practice shooting until you're competent.

[Sub-Moa]

Yep. Good point to make there on basic fundamentals. This thread is more of the run stage.

[dragon7]

Marksmanship applies just as importantly to the ladder method. As I've learned the hard way