Best generic load dev video I’ve seen.

[RME]

100 yards.

You can shoot them at any reasonable distance though. Some guys shoot them at 600 yards to look for a vertical “node” between charge weights, but that’s above my pay grade lol

A few minutes into the video I realized he's essentially doing an Audette-style ladder test (that's normally done at longer ranges) at 100 yards. I used to be a big believer in doing load development that way but when rigorously tested they quickly fall apart due to small sample variability. I'm not going back down that road again.

 

[huntnful]

So the novelty he’s proposing is if you want to search for pressure with a ladder, put them all onto a composite group and you sort of get for free a group size measurement under some degree of variable conditions (?)

Exactly. And since I’ve seen huge differences between barrels, I’m essentially always looking for pressure with a given combo before I do anything else. So it’s a 3 birds with one stone type of thing.

 

[AkMtnRunner]

Mine is a similar process. I prefer to have at least 10 shots for the sample size. I may step 0.1 gr over a smaller range if I am confident where I may pressure out. I will also make my own target board with bright small circle stickers on cardboard with one per shot so that I have an easy record of each POI.

 

[schmidty3]

A few minutes into the video I realized he's essentially doing an Audette-style ladder test (that's normally done at longer ranges) at 100 yards. I used to be a big believer in doing load development that way but when rigorously tested they quickly fall apart due to small sample variability. I'm not going back down that road again.

I dont know. He found peak pressure. He found that a pretty broad range of charges all hit about the same spot. In a handful of shots.

You think if you shot 20 of each of those charges that hit at the same POI that you'd see big differences between them?

I bet they all would be adequate for what we do.

I also bet he'd outshoot 99.999% of all roksliders. He's a fun shooter to watch. Ice in his veins.

 

[schmidty3]

@acochran

You're rokslide famous

 

[RME]

I dont know. He found peak pressure. He found that a pretty broad range of charges all hit about the same spot. In a handful of shots.

For what it worth, I'm not interested in trying to argue you out of doing it. If you're happy with it don't let me rain on your parade. I did the same thing for years shooting 300 yard ladder tests with the exact same rationale that multiple bullet impacts in the same area show a "stable node", "powder insensitive load", or whatever. I fully believed in that at the time until it was shown with more robust analysis that those random patterns don't hold up. I don't see how shortening the distance to 100 yards changes the analysis but that's just me, if it works for you rock on

You think if you shot 20 of each of those charges that hit at the same POI that you'd see big differences between them?

Build the straw man and knock it down, nice

I bet they all would be adequate for what we do.

I agree with that 100%.

I also bet he'd outshoot 99.999% of all roksliders. He's a fun shooter to watch. Ice in his veins.

I'm sure you're right with that, he's definitely a better shooter than I am and I subscribed to see more of his content.

 

[schmidty3]

For what it worth, I'm not interested in trying to argue you out of doing it. If you're happy with it don't let me rain on your parade. I did the same thing for years shooting 300 yard ladder tests with the exact same rationale that multiple bullet impacts in the same area show a "stable node", "powder insensitive load", or whatever. I fully believed in that at the time until it was shown with more robust analysis that those random patterns don't hold up. I don't see how shortening the distance to 100 yards changes the analysis but that's just me, if it works for you rock on

Build the straw man and knock it down, nice



I agree with that 100%.

I'm sure you're right with that, he's definitely a better shooter than I am and I subscribed to see more of his content.

So what's the difference between...

Random patterns that dont hold up...

And adequate for what we do? (Being hunting and NRL to 1000 yards)

If its adequate, doesnt that mean it holds up?

 

[RME]

So what's the difference between...

Random patterns that dont hold up...

And adequate for what we do? (Being hunting and NRL to 1000 yards)

If its adequate, doesnt that mean it holds up?

Bro you're trying way too hard