Home Forums Hunting & Shooting Express Rifles and Big Bores Only Updating the 404 Ruger African project

Range session today to chrono Barnes 400 gn TSX, 400 gn Banded Solids and Swift 400 gn AF. All chrono data obtained at 15', Temp = 68 F.

Swift 400 gn AF, Fed 215M, BL (C)-2 74-77 grains, COALL = 3.420"
MV (avg)= 2190 - 2285. The 77 gn load produced stuck cases, so constitutes a significant overload in my rifle and I consider it unsafe. The conclusion is that a slower powder will be needed with the Swift AFs to reach target MV. For now will discontinue testing the Swifts and resume later in the summer with IMR-4320, RL-15 and IMR-4350.

Barnes 400 gn TSX, Fed 215M, BL (C)-2 73-76 grains, COALL = 3.420" MV (avg) = 2200 - 2252

Barnes 400 gn Banded Solid, Fed 215M, BL (C)-2 74 grains, COALL = 3.420" MV (avg) = 2273

Further chrono session within next 2 days.

Target used as aiming point at 25 yds for chrono firing. All the bullets used seem to produce good accuracy, with 100 yd firing next week. The barrel has retained its accuracy after the re-bore. Small holes are 9.3x62. Fifteen .423" shots are aggregated in the groups at 11 o'clock (small right upper target), 9 o'clock (to the left of the right point of the central diamond) and at 6 o'clock (bottom point of central diamond). One Swift AF at 3 o'clock.