extreme spread, the fastest and slowest chronographed speeds.
it can indicate variances in powder charge or other inconstancies in the loaded rounds.
often accurate ammo has a small ES.
greg
Type: Posts; User: greghud
extreme spread, the fastest and slowest chronographed speeds.
it can indicate variances in powder charge or other inconstancies in the loaded rounds.
often accurate ammo has a small ES.
greg
reasonably big ES, doesn’t affect accuracy tho.......