Jarmann M1884
Comparison with contemporary rifles

Rifle
Jarmann M1884
Remington M1867
Mauser Gewehr 71/84
Gras rifle
Martini–Henry
Accuracy at 600 m
46 cm (18.1 in)
96 cm (37.8 in)
80 cm (31 in)
89 cm (35 in)
69.5 cm at 1,100 m
Maximum point-blank range
438 m (1,437 ft)
300 m (984 ft)
350 m (1,150 ft)
379 m (1,243 ft)
346 m (1,135 ft)
Effective range
2,400 m (2,620 yd)
900 m (980 yd)
Unknown
Unknown
1,370 m (1,500 yd)
Rate of fire
Unknown
13 round/min
Unknown
Unknown
8 to 12 round/min
Magazine capacity
8
None
8
None
None
Calibre
10.15 x 61R
12.17 x 44 rimfire
11.15 x 60R
11 x 59R
.450/577 (11.455 x 65R)
Muzzle velocity
500 m/s (1,640 ft/s)
386 m/s (1,266 ft/s)
430 m/s (1,411 ft/s)
455 m/s (1,493 ft/s)
416 m/s (1,365 ft/s)
Barrel length
850 mm (33.5 in)
951 mm (37.4 in)
Unknown
Unknown
840 mm (33.1 in)
Total length
Unknown
1355 mm (53.3 in)
Unknown
Unknown
1245 mm (49 in)
Loaded weight
4.5 kg (10 lb)
4.32 kg (9.52 lb)
Unknown
Unknown
3.83 kg (8.5 lb)

Question: What rifle had an 8-round magazine and fired a 10.15 mm cartridge?
Answer: The Jarmann M1884 fired a 10.15 mm cartridge in an 8-round, magazine.