Need G7 on the .30 cal 180gr Barnes TTSX - 02/25/23
It’s not in my copy of the Litz book. Anyone got a verified number?
Re: Need G7 on the .30 cal 180gr Barnes TTSX - 02/25/23
G1 divided by1.950 should get you close!
G1 is .453 I believe
G1 is .453 I believe
Re: Need G7 on the .30 cal 180gr Barnes TTSX - 02/25/23
Is that .453 according to Barnes? Or verified with drops?
Re: Need G7 on the .30 cal 180gr Barnes TTSX - 02/25/23
Got that from my Barnes book!
Re: Need G7 on the .30 cal 180gr Barnes TTSX - 02/25/23
I see .484 in the book.
Re: Need G7 on the .30 cal 180gr Barnes TTSX - 02/25/23
Your correct i was looking at the TSX!
Re: Need G7 on the .30 cal 180gr Barnes TTSX - 02/27/23
G7 is .223
Re: Need G7 on the .30 cal 180gr Barnes TTSX - 02/27/23
correction .... was going off memory
![[Linked Image from imagizer.imageshack.com]](https://imagizer.imageshack.com/img924/8687/tCJRjy.jpg)
Re: Need G7 on the .30 cal 180gr Barnes TTSX - 02/27/23
divide/multiply by .512
Re: Need G7 on the .30 cal 180gr Barnes TTSX - 02/28/23
Somewhere in there lies the truth.
Re: Need G7 on the .30 cal 180gr Barnes TTSX - 03/07/23
Using the JBM Ballistics Drag Function Conversion....at 3000 fps it comes out to be .238. 2900 fps = .240. 2800 fps = .242. Input your own velocity to get a more accurate G7 for you rifle.
Alan
https://www.jbmballistics.com/cgi-bin/jbmgf-5.1.cgi
Alan
https:/