|
My favorite powder for most 6 mm loads is IMR4350. My recommendation is to look at a couple of manuals for amount of powder. I have had a couple of 6 mm's and what was maximum load in one wasn't for the other. I found that the maximum load in the manuals was not too hot for my 6 mm's. The maximum loads in the 6 mm's I have had (IMR4350) turned out to be very good loads. The first 6 mm I had could shoot 1/4" groups with several loads. The one I have now is much more picky but I think 3/4" groups with that bullet would be likely. The other were just work horse rifles and I did little developement work with them.
The 6 mm I have now seems to be very picky regarding seating depth. It likes the heavier longer bullets while the first liked short 75 grain hollow points (Speer and Sierra) - the worst loads in the presnt rifle might be as large as 2 " groups which I think is unacceptable and they were using some uncommon powders.
What I am trying to say is this. The 6mm's I have owned liked IMR4350 - all of them, but the loads they liked were quite different. I suggest looking in manuls and expect the heavier loads (of powder) will likely shoot best.
|