I've loaded 2k plus .500 mag. I tried to be economical and use plated bullets and discovered they jump the groove no matter how tight I crimp them.

I load full power loads in the .44 and .500. I just don't see why you tame them way down and waste all that money and time to watch the bullet fall out of the end of the barrel. I bought these calibers to experience the benefits of them... back to your loading problems.

So in my experience all the plated bullets jump the groove created by the crimp the 3rd - 4th round. I use only jacketed bullets now.

For economical jacketed loading, I use Zero jacketed at a great price. (as good if not better than plated pricing,) followed by Hornady, and Sierra jacketed.

I'm almost out of plated bullets and I use them for my .44 auto.
500's are all gone ....jacketed only for me on these big jumper revolvers