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Anyone here tried N133 powder, talking to Google, it appears to be what folks use for speed in 223.
A mate of mine has some 2206H, so I might pinch some of that.
But if that is still a bit slow I'll give H335 a whirl.
HI Beetroot
I a using N130 in my 222 23.1 g with a 52g match bullet getting 3347fps, this is with a match chamber and a 26 inch barrel.
Usual disclaimer safe load in my rifle etc
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