[wogpotter]

I'm thinking of a very different technique for "Ladder Loads", one that uses less powder & supplies, not more!

Here's the technique I use.

1: Get several manuals with the powder/bullet combination you're thinking of.

2: Find the LOWEST high load.

3: Find the HIGHEST Low load.

4: Find the median (1/2 way between (1) & (2)).

5: Load 3 batches of 5 rounds. #1 is the HIGHEST LOW, #2 is the middle of the road, & #3 is the LOWEST HIGH.

6: Fire & chronograph all 15 loads.

7: Graph the resuts.

Because you set up a max/min/ median you've created the strait line portion of the volume/pressure/velocity curve. Just pick a desired velocity, or load, & look it up from the graph. make up a set of 3 lets say aim, aim +2%, aim -2% & shoot to fine tune & you're done!