ior
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May 01, 2023
The Richard Utting Blog - April Edition
Recent visits to the Moor have been about fine-tuning the new Creedmoor and 300WinMag loads after their rather delayed return from the smith for new barrels.
Firstly, I zero, sort the powder charges out and, after barrel run-in has settled down, I would then fine-tune for vertical at long range. A single hole gun at 100y doesn’t mean much at long range.
I have a target just for this, actually. It’s a plate at 808y that is only a handful of inches high, but a couple of feet wide. There’s a mph or two of windage tolerance but for vertical, from the centre to the top and centre to the bottom, it is barely 0.1MIL.
When I’m tuning seating depth or maybe using a barrel tuner to the same end, it’s very easy to see on this target which nodes produce the best vertical dispersion. This, of course, is tied to fps SD results on the
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May 20, 2020
IOR Recon, an honest review by Paul Ford of Fieldsport Cymru.