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Reloading Data » Rifle reloading » 8 x 57 IRS

8 x 57 IRS

Test barrel: 620 mm (24½”), 1 in 9½” twist
Primers: Large Rifle
Cases: Lapua, trim-to length 56,80 mm (2.236”)

Bullet Powder Starting load Maximum load
Weight Type Mfg C.O.L Type Weight Velocity Weight Velocity
[g] [grs]     [mm] [in.]   [g] [grs] [m/s] [fps] [g] [grs] [m/s] [fps]
9,7 150 Spitzer Speer 75,0 2.953 N140 3,14 48.5 797 2615 3,35 51.7 858 2815
            N150 2,83 43.7 712 2336 3,08 47.5 890 2920
            N540 3,12 48.1 793 2602 3,52 54.3 890 2920
11,7 180 Naturalis N559 Lapua 79,5 3.130 N135 2,47 38.1 702 2303 2,65 40.9 742 2434
            N140 2,63 40.6 711 2333 2,83 43.7 758 2487
            N150 2,63 40.6 717 2352 2,83 43.7 758 2487
            N540 2,77 42.7 733 2405 2,94 45.4 778 2552
12,8 198 TIG Brenneke 77,0 3.031 N140 2,80 43.2 708 2323 2,95 45.5 739 2425
            N540 2,93 45.2 721 2365 3,07 47.4 758 2487