Did another test today, this time shooting from my driveway leaning across the hood and windshield of my car for support.
This was a pretty steady rest --certainly as good or better than you could ever get if you were squirrel hunting or planking in your backyard.
But, I was only shooting from 20 yards back and my scope had significant parallax at that short range.
I tried to center my eye behind the lens to minimize the error, but there was "some error" anyway.
ACCURACY RESULTS:
Super Colibri: 1.35" average of three 5-shot groups.
The groups were centered around the 10 ring of the target;
there was no more bullet drop from this load than
any of the other low powered loads tested.
CCI brand CB long round: 1.2" average.
Also well centered over 10-ring.
CCI Quiet load (710 f.p.s.): .52" and .78" for an average of
only 0.65". This load shoots half the group size as the other types of ammo.
(Maybe my rifle's barrel just prefers full weight bullets,
at 36 to 40 grains,but not 29 or 20 grain.)
NOISE LEVEL:
Super Colibri's were noticeably quieter than the other two loads. Cc I quiet, and CB long's, both sounded the same loudness to me.
At least as to the sound of the gunshot itself. I could tell the CCI "Quiet" load thumped the backstop with a louder impact noise.
This was a pretty steady rest --certainly as good or better than you could ever get if you were squirrel hunting or planking in your backyard.
But, I was only shooting from 20 yards back and my scope had significant parallax at that short range.
I tried to center my eye behind the lens to minimize the error, but there was "some error" anyway.
ACCURACY RESULTS:
Super Colibri: 1.35" average of three 5-shot groups.
The groups were centered around the 10 ring of the target;
there was no more bullet drop from this load than
any of the other low powered loads tested.
CCI brand CB long round: 1.2" average.
Also well centered over 10-ring.
CCI Quiet load (710 f.p.s.): .52" and .78" for an average of
only 0.65". This load shoots half the group size as the other types of ammo.
(Maybe my rifle's barrel just prefers full weight bullets,
at 36 to 40 grains,but not 29 or 20 grain.)
NOISE LEVEL:
Super Colibri's were noticeably quieter than the other two loads. Cc I quiet, and CB long's, both sounded the same loudness to me.
At least as to the sound of the gunshot itself. I could tell the CCI "Quiet" load thumped the backstop with a louder impact noise.
