Load development and barrel speeding up

[tsonda]

So quick question when developing a new load for a brand new barrel. I know we are looking for a node. I've developed several using the ladder test and found definite nodes. Some are now calling it a velocity node that we are looking for. Not just barrel harmonics. My question is that some or maybe all barrels speed up or settle in after 100-150 rounds through them. So when do you develop a load? If I develop a load and then 75 rounds later my barrel speeds up am I still good? thanks

 

[GhengisAhn175]

Why not just verify if it’s good if it does speed up?

If it worsens for whatever reason just back down the charge. If that doesn’t fix it you probably weren’t in a dialed in node

 

[padom]

I put 100rds down the barrel then start load development. If your just replacing a barrel with same caliber you can find your node pretty quickly testing up and down from your existing load.

 

[dannySH]

I just meassure the velocity of the barrel when is new, then I start shooting anything with it meassuring the velocity every 25 shots more or less. When the barrel speeds up (usually at around 100 rounds) I start doing load development.

 

[tsonda]

Ok thanks. The several loads I have developed where all on barrels with more than 100 rounds on them when I started load development. I shot out a 6.5 creed barrel and got a new one spun on. I was wondering the process starting from scratch. I'm also about to build a Dasher for my kiddos. That one sounds easy enough, I can fire form brass until barrel settles in.