115 DTAC inputs for ballistics programs?

[Kevin_Duckworth]

I presume you should use a BC of 0.585 and G7?

Anything else relevant?

Thanks

Kevin

 

[paul]

Hi Kevin
Do you have some 115's in NZ?

Regards
Paul

 

[Kevin_Duckworth]

Paul

Yes but I bought them while I was in the States last year at the benchrest World Champs.

I'm shooting a modified 243AI using Lapua brass with the shoulder pushed back and a long neck. I also have some BIB flat base 95's on order for shorter ranges and for the NZDA Short F class,basically IBS VFS 6 bull targets at 100/200yds but shot prone with rests etc).

All of this is with a 30" Krieger with a Palma profile on a glued in Teddy with a .308 boltface. Early days yet but fireforming 44gn VV160 gives 3050fps. I started with a MAB barrel but couldn't get it to shoot, I also use a Douglas 10 twist which a friend has kindly loaned with Berger 95's, and now the Krieger. The Douglas is on the bleeding edge of instability - you need to get velocities up to avoid 3" groups.

Cheers

Kevin