.45 colt +p load data... for .454 JACKETED bullets?

[gyppo]

Taking a break from this depressing election coverage...

I recently got a hold of a box of American Eagle .45 colt 225 grain JSP and decided to pull them to reload them to ruger/TC levels.

What confuses me is the projectiles are jacketed soft point but .454" instead of the usual .452".

Does anyone know of load data anywhere with .454" 225 grain jacketed projectiles? Have any of you even HEARD of .454" jacketed projectiles? My searches aren't turning up anything.

I suppose I could re-size them to .452", but for just 50 projectiles it isn't worth getting the die. Worst case scenario I just re-load them standard .45 colt levels, but if I could find the data I'd like to try them at the 30,000 psi level.

Thanks in advance.

B

 

[LUTNIT]

Jackets and soft lead cores will swage down. Just use normal data for that weight from starting loads. If you're paranoid, reduce the starting load 5-10%.
They will produce higher pressures than .452" but it's usually marginal. With starting loads you will have more than enough margin to not be over pressure.

If they were solid copper/gilding metal/brass bullets it could be different. For cup and core bullets, .002" isn't the end of the world assuming you aren't starting at max.