JimGnitecki
Member
- Joined
- Mar 28, 2010
- Messages
- 1,258
I have patiently been working the issues out of both my recently delivered Dillon XL750 and my own setup, to improve the consistency of my 357 Magnum CAS handload that I use in both my Cowboy Action Shooting replica lever action rifle and my CAS revolvers.
Today, I was at the range to fire some groups to see how far out my Uberti 1873 rifle's sight settings were off after installing a different front sight that I could see much better. As it turned out, I only needed to fire 3 groups of 5 shots each to get consistent data for both elevation and windage errors.
I noticed that the Labradar muzzle velocities being reported seemed more consistent than I had been getting before. After the range session, I examined the Labradar shot log, and found a really nice set of statistics for this short 15 shot batch of shots:
Stats - Average 1129
Stats - Highest 1144
Stats - Lowest 1120
Stats - Ext. Spread 24
Stats - Std. Dev 6.86
This is a 158g .358" bullet load using TightGroup. In the revolvers, it gives a muzzle velocity of about 910 fps.
Finally!
Today, I was at the range to fire some groups to see how far out my Uberti 1873 rifle's sight settings were off after installing a different front sight that I could see much better. As it turned out, I only needed to fire 3 groups of 5 shots each to get consistent data for both elevation and windage errors.
I noticed that the Labradar muzzle velocities being reported seemed more consistent than I had been getting before. After the range session, I examined the Labradar shot log, and found a really nice set of statistics for this short 15 shot batch of shots:
Stats - Average 1129
Stats - Highest 1144
Stats - Lowest 1120
Stats - Ext. Spread 24
Stats - Std. Dev 6.86
This is a 158g .358" bullet load using TightGroup. In the revolvers, it gives a muzzle velocity of about 910 fps.
Finally!
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