CJF
(.333 member)
01/01/25 02:49 AM
Re: John Dickson 500 BPE hammer gun

I recorded this session with a Garmin chronograph. For some reason it only measured 5 of the 6 shots. Average velocity was 1,743fps. Min velocity 1706fps. Max 1768. Std Dev 22.5. 2295 ft-lbs.

At this same range session I also tried this bullet with slightly more powder (130gr vs 119) in a Webley screw grip 500bpe double rifle retailed by Army Navy CSL in 1889. Those rounds had a much lower Standard Deviation of 3.0 vs 22.5, but results on target were much less satisfactory. Not sure if that was me, or the rifle just didn't like that load, even though it was very consistent.



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