Anyone got any loads they want to share for 70gr Sierra BlitzKings in a 243 Winchester. Not the WSSM!!

Thanks to all that reply!!

Try IMR 4064 (40.5 grains is over book max) and work up to your rifles MAX, and watch the groups tighten... or not! Great velocity, and superior accuracy is what to expect. Try as an alternative IMR 4350 or Win 760 they also work well for these applications. Book MAX here is about 45.5 grains and should also work best run hot & clean. Good shooting with a great cartridge.

I went by Graffs and picked up the sierra manual, some 70 gr matchkings and a pound of H322 today.
Sierra says their accurate load with both our bullets is 33.8 gr of H322.
I'll bracket my first ladder around that info.
They claim 3100fps.

47 gr of 4350, or 47.5 gr of H414

30378 That's the same bullet I shoot in my .243. Try Varget about 41.0 Gr. Shoots at .5 MOA or less for me.

Nosler 70 gr. Ballistic Tip
OAL 3.255"
47 grains H 4350
Rem. 9 1/2 primer; WW case
M.V. fps 3430 fps

quote:

Originally posted by 30378:
Anyone got any loads they want to share for 70gr Sierra BlitzKings in a 243 Winchester. Not the WSSM!!

Thanks to all that reply!!

40.5 grs of Varget! Shot real well in my friends rifle.