.45vs.50 @400fpe

[BUTCHER45]

     Hi Veral,

     I am about to order my custom barrel and need to come to a decision on caliber.  This will be a warm-up barrel design to the rifle we were discussing privately.
     
     This rifle will be putting out about 400fpe regardless of which caliber I use as that seems to be the limit of the design thus far. 
 
     When comparing the ballistics of a 280grain .454 going 805fps, and a .505 350grainer going 720fps, given the usual meplat size you would recommend for both calibers and weights, which shows to be the best killer?  I am limiting range to about 75 yards so any difference in trajectory doesn't appear to play a significant role.
     I sent you a PM.  Thanks again for the forum!

                                                                                                     BUTCHER45

[475AR10]

Not to change subject but do you have info on this rifle, it looks neat in the slide show.

[BUTCHER45]

Not to change subject but do you have info on this rifle, it looks neat in the slide show.

     Please use the Personal Message option for airgun questions.  Thanks.


                                                              BUTCHER45

[Veral]

  Since velocity isn't too far apart and range will be limited so trajectory isn't a problem,  I'd opt for the 50 caliber, to get a larger killing flat-nose.