by No1Mk3 » 01 Feb 2018, 1:49 pm
G'day Gunner,
2206H is a very good powder for 303. Several State and National Titles have been won using it, but individual rifles do give variable results. Have you experimented with other projectiles? It is a well known phenomenon that some rifles will not shoot boat tails like the Hornady 174 but will shoot very well with 150g flat base and vise versa. I nave loaded 2208 and 2209 in various rifles and projectiles and have now come back to 2206H. Checking my load data I see I originally loaded Nobel #1 with good results then moved to DuPont IMR 4350 using 180g Norma pills for my best ever results (young eyes then?). 4350 is according to the info from ADI, an equivalent burn rate to 2209! Maybe buy a small canister of 2209 for experiment, but also a small 2206H and try different projectiles, Cheers.
PS: The Norma was a flat base