Using a hit probability analyzer:
10" square target
97% chance of hit
Standard atmosphere
1MOA rifle/ammo/shooter precision potential (optimistic precision potential for factory ammunition with a hunter with limited practice)
Wind uncertainty 1 MPH (estimate a full value crosswind within 1 MPH 67% of the time and 2 MPH 99% of the time)
MV-SD of 10 fps (very good for factory reloads)
1 yard range uncertainty
7mm high BC 195 gr bullet (.387 G7)
Velocity 2600 fps – range corresponding to 97% chance of hit – 563 yards-1700 ftlbs impact energy
Velocity 3300 fps- range corresponding to 97% chance of hit- 632 yards-2700 ftlbs impact energy
Under these estimates, there is approximately a 70 yard difference with same chance of hit between a cartridge pushing a 7mm 195 gr high BC bullet at 2600 fps and a cartridge pushing the same bullet 3300 fps.
280 AI, 7 WSM, 7 Mag, 7-300, 7 STW, 7 RUM, 7-338 Lapua?
How would the information above inform decisions?
This vs. This, or That vs. That vs. That seem to engross pages of discussion. With realism, is there "that" much difference between certain cartridges or should the nature of discussion be better utilized with the primary causes to a hit or miss?
10" square target
97% chance of hit
Standard atmosphere
1MOA rifle/ammo/shooter precision potential (optimistic precision potential for factory ammunition with a hunter with limited practice)
Wind uncertainty 1 MPH (estimate a full value crosswind within 1 MPH 67% of the time and 2 MPH 99% of the time)
MV-SD of 10 fps (very good for factory reloads)
1 yard range uncertainty
7mm high BC 195 gr bullet (.387 G7)
Velocity 2600 fps – range corresponding to 97% chance of hit – 563 yards-1700 ftlbs impact energy
Velocity 3300 fps- range corresponding to 97% chance of hit- 632 yards-2700 ftlbs impact energy
Under these estimates, there is approximately a 70 yard difference with same chance of hit between a cartridge pushing a 7mm 195 gr high BC bullet at 2600 fps and a cartridge pushing the same bullet 3300 fps.
280 AI, 7 WSM, 7 Mag, 7-300, 7 STW, 7 RUM, 7-338 Lapua?
How would the information above inform decisions?
This vs. This, or That vs. That vs. That seem to engross pages of discussion. With realism, is there "that" much difference between certain cartridges or should the nature of discussion be better utilized with the primary causes to a hit or miss?