6mm 115g DTAC Question

[dave7mm]

Im running the Bn coated, pointed DTACs,at 3133 fps.
Thats out of a straight 243 Win with a 1-8 twisted Rock.
47g of Reloader 25,russian primer.SD of 9.
Im getting 1.1 to 1.5 inch groups at 300 yards if I do my part.
Zeroed at 100 yards can anyone out there tell me my come ups at 800, 900, 950, and 1000 yards, will be?
Thanks
dave

 

[Steve Blair]

Dave,

Funny you should post this. I was working this problem today for a 6mm Remington, 7.5" twist Bartlein. I just had to fiddle the velocity a little lower and, there it was. This set uses Bryan Litz's G7 data for the DTAC.

I hope this helps. If you need some changes, I saved the results file.

 

[dave7mm]

Steve
Thanks.
I ran numbers from Litz program off the Berger sight.I converted the output to Mils as im running a 5-25x56 PMII.
The g7 BC number of .276 is for the older non pointed version.
Mr.Litz said the pointed up versions need about 3 % more.So I ran a g7 of .284......
I get in mils of up.
800 yards +4.53
900 yards +5.53
950 yards +6.06
1000 yards +6.63
The reason I need those distances.

http://www.ridgwayrifleclub.com/
Varmint Silhouette Bench Rest - Dates Added
Man ought to be able to have some fun trying to knock them things over.

Looks like our numbers are close.
Thanks again.


dave

 

[MTETM]

Try this web site and you can develop your own for any distance, velocity ect...


http://www.jbmballistics.com/cgi-bin/jbmtraj-5.1.cgi

 

[C. Collins]

Try this link http://www.biggameinfo.com/index.aspx?page=%2fbalcalc.ascx