View Single Post
Old 11-21-2016, 10:11 AM   #5
Donny Brook
Donny Brook's Avatar
Join Date: Aug 2014
Location: Snoopy's basement
Default Re: Large Caliber Auto Rifles?

Originally Posted by Anaraxes View Post
As for the Cole spreadsheet, you fill out all of the numbers in the "INPUT" section (column D, rows 13:22 in the version I have) and it gives you results in the "OUTPUT" section below that. Coming up with all the numbers the input section wants might take some research, though. Some of them are more obscure than others.

(Sometimes when I fool around, I just change numbers like burn length or chamber pressure to get the right output velocity, rather than hunting them down. That might break something somewhere else, of course.)
Thank you, I'll take a look again and see if I can decipher it now.

Regarding the ammo's comparative power, I chose types that had no more than +50% of the energy of a .30-06 (the WinMag). The Bushmaster is comparable to the .30-06 and the Raptor is about +20%.
Donny Brook is offline   Reply With Quote