Re: 30-338lap ?
If you don't run the IMP version there's really no fireforming required, just neck and shoot it like any other necked down wildcat.
With the IMP version you'd most likely want to create a false shoulder in the neck by not completely sizing the whole neck length, or neck 'em down and use the bullseye/cream of wheat method to form the brass before launching any lead.
It will sling a 240 SMK a LONG way, if you can get the 208 Amax bullets you should consider them as well since they have a dynamite BC and you should be able to get them north of 3200 fps.
BTW, I don't have one. I thought about it for a short while and didn't pursue it for cost reasons and I don't have anywhere to shoot 2000y. I have done a lot of loading for wildcats though, and this isn't really any different.