Author: gilgsn
Subject: Effect of Primer Selection on Muzzle Velocity
Posted: January 14 2025 at 2:24am
he!!o.
Subject: Effect of Primer Selection on Muzzle Velocity
Posted: January 14 2025 at 2:24am
he!!o.
A couple weeks ago I loaded a bunch of .41 Magnum rounds for my Ruger Blackhawk. I was getting short on large-pistol primers and used some from two different brands. At the range I was surprised to see an increase of 100fps (4-5/8 bbl) with one kind of primers. I remembered that I had some troubles seating them and told myself I would not buy that brand again... Recoil was sharp and the trigger guard dug into my index finger, drawing blood. Well, it turns out that the second box of primers I grabbed was actually large-rifle primers I use for .303 in my No5! Not making that mistake again!
Primers can make a big difference, especially the wrong kind...
Gil.