243 Load using 39 grain SBK

[Bitman]

I have a new Cooper Varminter ordered in 243, for my trip out west, to shoot PD's. I have a feeling I'm not going to have much time to work up a load for this gun. I have already bought 1000 Rem. cases, and 1000 of the Sierra 70 grain BlitsKings. Does anyone have a load that works in their Cooper, that they might be wiiling to share. I know it might not be accurate in my gun, but it'll give me a place to start. Gun is due to arrive about 2 to 3 weeks before I leave. This will be my secondary rifle.

 

[loaders_loft]

I think you ordered the wrong Bullets!!

Sierra Bullets - The Bulletsmiths

 

[Bitman]

No, I have the 70 grain ones for the 243.
I was thinking of the 204 I've been loading shells for the past few nights.
Sorry about that.

 

[loaders_loft]

nosler lists Varget as the most accurate powder tested, for their 70gr ballistic tip. If you need the starting/max loads from the nosler manual, send me a PM and I'll look them up for you.

Otherwise, look at the accuracy and hunting loads listed in the Sierra manual, if you have one.

These are usually good starting points.

 

[Bitman]

Okay Thanks, I have both manuals.

 

[MachV]

Found a listing of Coopers favored reloads a while back. They list 42.5 grains of H380 as their go-to load for the 70 blitzkings.
I've always had better luck getting H414 to work with the 55s and 70 grainers?

 

[loaders_loft]

Yes, I use H414 with the 55gr ballistic tips as well.