So M852 is rated at 2550 fps by bird watchers supply and gift the military at that longer measuring distance.
Regulated countries every rifle cartridge combo has to be proofed at 125 of this maximum.I.P.
It just seems like, regardless of the allowances I university of miami gift store make, there's no way the 748 yard popper range should have had instability in those conditions, but it did anyway.Alternative cartridges edit The 7mm Winchester Short Magnum cartridge, a rebated rim bottlenecked centerfire short magnum introduced in 2001, is probably the closest ballistic twin of the 7mm Remington Magnum.Contents, the 7mm Remington Magnum offers ballistics better than the.30-06 Springfield with bullet weights of 175 grains and less, one of the more popular loads being a 160 grain spitzer loaded to 3,000 ft/s (910 m/s).If you are getting 2800 fps out of your 26" barrel, that is about 100 fps more than expected.The.300 Win Mag will launch a 175 gr SMK at 3100 fps, but it's also pretty pointless.Velocities weren't measured, so I'll just assume a 100 fps spread of 2550 to 2650 (at 15 ft from the muzzle) from the various guns brought to the class, some with 10" twists and some with 12" twists.3, the original purpose of the belted magnum concept taken from the.300 H H Magnum and.375 H H Magnum, was to provide precise headspace control, since the sloping shoulders, while easing cartridge extraction, were unsuitable for this purpose.Tests by the Navy showed.62 ammo that produced pressure in the high 40's of thousands of psi by copper crusher (CUP in saami terminology would get up into the high 60's and low 70's of thousands of psi (CUP, again) if baked.As you can see, for any given expansion ratio, increasing the charge (as in the.300 Win Mag) increases the Bore Capacity Index.Unexpectedly high velocity can be one of them.I'm a big fan of the 30-06 and the 300 do you have to report credit card rewards on taxes H H (properly loaded the 300s have a substantial edge I suppose, but I would put more importance on bullet construction than caliber in this thread.But the main concern with getting higher velocity is pressure.Even on one of our.
At 2900 fps MV out.300 Win Mag, the 190 gr SMK is still going 1450 fps at 1000 yards.
Ansi/saami Velocity Pressure Data: Centerfire Rifle Archived at WebCite "7mm Remington Magnum" (PDF).Also, the.300 often more easily handles heavier bullets with their better ballistic coefficients, like the 210 and 220 grain SMK's, which don't lose velocity as quickly as the lighter ones.But I think another point I should have brought up before makes the exact numbers moot.quot;: Originally Posted by Model 52 With a load like Federal's 168 gr match at 2650 fps you can keep it supersonic to 1000 yards, but it will still be down around 1400 fps at about 800 yards, so at best it only adds about.It still makes more sense to use a heavier 190 gr bullet at fps to take advantage of the cartridge's potential and efficiency with heavier bullets and to take advantage of the larger BC of the longer bullet.I don't own a 30-06 so I have no results for it, but again, there may be a more suitable powder for it other than 4350.6 The saami Maximum Average Pressure (MAP) for this cartridge is 61,000 psi (420.58 MPa) piezo pressure.Bullet faster than.308 or a Garand-safe.30-06 load, so the computer makes it look like it could take you to about 900 yards, but that the 1000 yard target may still start to see keyholes.This often makes a magnum suitable for hunting heavier game, but is often just more noise and recoil with no quantifiable increase in how well it kills most game animals.My preferred big game rifle will one day be.3x62 rifle.
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