Range Report 8 Aug 2021: Snider-Enfield Rifle

Location:  Lytle Creek Range
Weather:  Dry and Clear, 80 deg.  No wind.
Weapon:  Mark III Snider-Enfield.
Ammunition:  Hand-cast .600 in. two-groove bullets at 530 grains.  Loads as noted below.
(For more about how the cartridges were loaded, see here.)

All shots were taken with a 6:00 hold using a Fine Sight.  The shooting position was sitting unsupported.  The range was 100 yards.
For more about using sight alignment, see here.

The target used here is a one-third-scale copy of the Third Class Target used in the annual rifle qualification as depicted in the 1870 Musketry Instruction.

Table One:
Ten rounds with 70 grains of Schutzen 2F powder.
String Test:            39.5 in./10 rds. = 3.95 in./rd.
Figure of Merit:     3.26
Group Size:            9.37 in.   

Table 1: 70 grs. 2F Schutzen

Table Two:

Ten rounds with 65 grains of Swiss 1.5F powder.
String Test:             41.25 in./10 rds. = 4.13 in./rd.

Figure of Merit:      3.07

Group Size:            10.5 in.

Table 2: 65 grs. 1.5F Swiss

For more about the String Test measurement, read this.

For more about the Figure of Merit, read this.