Thread: 16" 308 mid weight projectile powder

Originally Posted by Gibo

2208? What swing is this you speak of?

No Benchmark 8208. Found it will give around 2700fps from a couple of 16" barrels with 150gr bullets. St Marks ball powders aren't well known or temp stability across extremes. Eg developing a load in winter, then getting pressure signs in summer and vice versa. I personally haven't loaded with them enough to observe it myself, prefer to stick to ADI where I can.

So is 2206H more temp stable than H335? Or much of a muchness?

Originally Posted by Beavis

No Benchmark 8208. Found it will give around 2700fps from a couple of 16" barrels with 150gr bullets. St Marks ball powders aren't well known or temp stability across extremes. Eg developing a load in winter, then getting pressure signs in summer and vice versa. I personally haven't loaded with them enough to observe it myself, prefer to stick to ADI where I can.

Ah ok I'm with ya now. I was thinking you were indicating my 2206H load would swing a lot summer to winter, something I have never noticed.

In my 16inch I'm using 48grns of 2206h and getting 2820ish fps with 150grn pills

Have you thought of using lighter Barnes projectiles? I am driving a 130 TTSX at 3000 ft/s out of a 17 1/5 inch barrel. Using 2206H. Have have devastating results from 50m to 200m on Reds, fallow and the odd goat.

Originally Posted by Pongo12

In my 16inch I'm using 48grns of 2206h and getting 2820ish fps with 150 begrn pills

Pongo, that's a very hot load. Your rifle and barrel but please be careful.

Originally Posted by Robojaz

Have you thought of using lighter Barnes projectiles? I am driving a 130 TTSX at 3000 ft/s out of a 17 1/5 inch barrel. Using 2206H. Have have devastating results from 50m to 200m on Reds, fallow and the odd goat.

Yeah have contemplated it but they are a hell of a price! if you run the numbers thru a ballistic calculator the 150gr (even a 2700fps) has loads of oomph out to about 400 odd meters. The drop isn't that much more either... 400m is a long way for a bush rifle... ;-)

Originally Posted by 10-Ring

Pongo, that's a very hot load. Your rifle and barrel but please be careful.

No signs of any pressure at all. Kills well, sacked a good sized sambar few nights ago. Very capable little round