You're gonna be runnin' a BC around .320 and max chamber pressure around 50 KCUP, velocity in the realm of 2200 fps. I seriously doubt the effective loss of a a few hundreds inch of case length is going to alter that significantly. The #3 will certainly tolerate max loads for what it's worth. Question you have to answer at the end of the day, can you deal with wind and drop at the range you're looking to shoot? Effects are not going to be huge, but enough to make the difference between a solid shot and a long tracking job.

Best of luck with the endeavor!

BD

I am..........disturbed.

Concerning the difference between man and the jackass: some observers hold that there isn't any. But this wrongs the jackass. -Twain