The 6.8 with the lighter bullets are not compressed. I am loading 1/2 gr over max on the 6.8 as most of the data is for the 1in10" twist with the SPCI chamber. The guns with the newer SPC II chamber and 1in11" are a totally diff animal. The loads are on the mild side as they don't know what twist and chamber you have. I have the newer proper barrels. Actually if you look at the data sheets they specify the loads are for the 1in 10 twist barrels.
Back to the 223 I use Hodgdon Varget for the heavy bullets (usually 68 or 69gr), but I have the imr4198 and it works well.
Now if one of you would like to send me 8lb of the H335 I would be glad to give it further trials. I'll give you a detailed report in exchange.
TJ
Back to the 223 I use Hodgdon Varget for the heavy bullets (usually 68 or 69gr), but I have the imr4198 and it works well.
Now if one of you would like to send me 8lb of the H335 I would be glad to give it further trials. I'll give you a detailed report in exchange.
TJ

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