Detonation if it happens is with reduced charges of slow burning powder in big cases, small charges of pistol powder in a .223 may not be very accurate but it won't detonate a pinch of dacron will improve the accuracy 3-5 grains
of AS30 burn rate powders work ok in .22Hornet .222 and .223 just need to play around and see what works best, be careful not to get a bullet stuck in the barrel they are a bastard to remove unless they are cast bullets,
For reduced loads not subsonic Hodgdon recommends a 60% load of H4895/AR2206H, I have used 25 grains of AR2206H with a cast 151 grn HP bullet in my .308 velocity is around 1800fps depending on barrel length.
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