Hi Folks,

I'm trying to build a Ballistics Chart for the above bullet. I have the FPS chonyed and know my POI at 50 and 100 but can't find a BC.

Can anyone get me close? I only want to figure it out to 150 yards.

Thanks in advance.

I'll take an educated guess.

Probably around .27 would be my guess

That's a mighty good guess. My calculator shows the BC of a .504 535 grain semi-wadcatter as .263, and a roundnose as .301.

Thanks Gentlemen,

This is enough to put my chart together.

Thanks . Lucky guess based on the fact that I know my 480 gr is .25 .the best BC of a conical that I have is my .410 cal white with a 410 gr bullet . The BC of it is .36 , which is pretty darn good for a lead conical

The 535 grain No Excuse conical is .539 diameter so I think the BC will be a bit lower.

Oops. Didn't realize we were talking .54 caliber. The calculator shows a BC of 0.23 for a .539 diameter 535 grain bullet in SWC configuration.