I recently confirmed something I've been reading for some time. I'm shooting a 284 Shehane with 183 SMK bullets out of a 1-9 twist barrel. I'm in Ohio at about 1,190 ASL. The rifle would shoot, ok some days, other days but it would produce errant flyers with no explanation.
I recently traveled to Colorado to shoot a couple of matches with my long time friend at the Byers range at approximately 5,500 ASL.
Much to my delight, the rifle turned into a laser and posted a very good score. (A PR for me)
The bottom line is, the difference in elevation between the two locations proved to be a major factor in the performance of the rifle, so use enough twist for your bullet at your location.
I hope this helps,
Lloyd
I recently traveled to Colorado to shoot a couple of matches with my long time friend at the Byers range at approximately 5,500 ASL.
Much to my delight, the rifle turned into a laser and posted a very good score. (A PR for me)
The bottom line is, the difference in elevation between the two locations proved to be a major factor in the performance of the rifle, so use enough twist for your bullet at your location.
I hope this helps,
Lloyd