Chokes Effective Range

From GunCounter

CHOKES EFFECTIVE RANGE

Expressed in Yards

	IDEAL	EFFECTIVE
CHOKE	RANGE	RANGE
Cylinder	15 - 22	10 - 27
Skeet 1	20 - 27	15 - 32
Imp Cylinder	25 - 32	20 - 37
Skeet 2	30 - 37	25 - 42
Modified	35 - 42	30 - 47
Imp Modified	40 - 47	35 - 52
Full	45 - 52	40 - 57
Extra Full	50 - 57	45 - 62

EFFECTIVE PATTERN DIMENSION

Expressed in inches of Diameter

YARDAGE	10	20	30	40	50
Spreader	23	27	44	51	66
Cylinder	20	32	38	44	57
Imp Cyl	15	26	32	38	51
Modified	12	20	26	32	46
Full	09	16	21	26	40

Both taken from NRA American Hunter Oct. 2006 Issue page 92

<u>Yardage	10	15	20	25	30	35	40	45	50
Full	10	15	20	25	30	35	40	45	50
Modified	25	20	25	30	35	40	45	50
Improved Cylinder	20	25	30	35	40	45	50
Cylinder	25	30	35	40	45	50

Above taken from Beretta Arms</u

Notes:

As you can see the differences are slight, could be the amount of powder, size of wad, with or without a shot cup, size of shot cup or whether lead of another material for the pellets was used comparing the two different reports...

It's 1" to 1 yard on FULL choke not cylinder...

And it don't matter whether you use buck or bird the expansion will be about the same...

When the spread becomes too open it will allow a clay target or a live bird to fly through unscathed...

Longest continuous string in competition

American Skeet Assoc.Records