Cometa 220 accuracy at 10m

10 meter distance shooting accuracy for Cometa 220 SPRING air rifle, uploaded by Olly, at March 9, 2019. Test ID: #36 (SPRING = Spring powered)

Average accuracy for tested 220 airgun is 4.4 cm (≈ 1.7 inch) horizontal and 3.2 cm (≈ 1.3 inch) vertical accuracy. Diagonal = 5.4 cm (≈ 2.1 inch) (from center-to-center of the hits). Tested distance was 10m. The details of test can be seen below shooter's description.

Energy and fps going by manufacturing figures. Spring may be weakened. Will try again at other distances using a lighter pellet

Tested air rifle:

Type:	220
Brand:	Cometa
Power:	SPRING
Aiming:	scope
Caliber	.22
Speed:	640 fps = 195 m/s
Energy:	14.2 J = 10.5 ft-lbf
Modified*	n

Ammunition:
VMX PELL 14.66 gr

Result of shooting accuracy:

	horizontal		vertical
	cm	inch	cm	inch
1.	4.7	1.9	5.8	2.3
2.	3.2	1.3	1.6	0.6
3.	4.5	1.8	1.6	0.6
4.	5	2	3.7	1.5
avg	4.35	1.7	3.18	1.3

Shooting distance: 10m
Diagonal accuracy: 5.39 cm

More statistics

Theoretically, what is the smallest target that can be hit N times out of 10 shoots. N=
1×: 1.3×0.9 cm (=0.5×0.4 in)
5×: 2.5×1.8 cm (=1×0.7 in)
9×: 6.2×4.5 cm (=2.4×1.8 in)
Coke can hits: 20 /20
Matchbox hits: 14 /20
Sugar cube hits: 2/20

Standard deviation (best if 0):

Horizontal: 0.69 cm = 0.27 inch
Vertical: 1.74 cm = 0.69 inch
Diagonal: 1.87 cm = 0.74 inch
Hor./Vert. ratio: 1:0.73 = 136.8% info
Predicted shooting accuracy at 10m×2 = 20m distance: 9.4×6.8 cm = 3.7×2.7 in.

Olly rated this air gun with .