Re: Rem 700 in 223 hold moa at 800?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: JPipes</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: AUJohn</div><div class="ubbcode-body">
IF he wants to be shooting at bloody massive steel plates he probably will not notice issues going subsonic/transonic IF he shoots in the right conditions/altitude. and of course IF his gun is "fast" and IF he does not mind pushing pressures and IF...
22 inch is pushing it for long range .223. Anyone stating otherwise is pushing something they lack knowledge on. Using the AI version, which is JUST fast enough that you MAY not see the issues, to support going short on a .223 is really misleading, unhelpful and not at all accurate.
FYI, wind IS an issue with the .223 at 1K. Very strange for anyone to claim it's not.
(From someone who uses the .223 out to 1K and has just bought a M10PC...)</div></div>
The whole reason I went 223ai was to get longer barrel velocity out of a 22 inch barrel. I get 2925 fps out of formed brass, 80gr bergers, and a 22 inch Rock barrel...all of which are more than enough to hold MOA to 1000, let alone 800. I know for a fact that I can load them a bit hotter and get to 2950ish with no pressure problems in my rifle. I have 4 firings (including the forming) on my current lot of Lapua brass, and the primer pockets are still as tight as the first loading.
According to my ballistic calculator:
<div class="ubbcode-block"><div class="ubbcode-header">Code:</div><div class="ubbcode-body ubbcode-pre" ><pre>+----------------------------- Program Inputs ---------------------------------+
| |
+---- Bullet Inputs -----+----Atmosphere Inputs ----+-------Sight Inputs ------+
| Caliber: 0.224 inches | Temperature: 85 degrees | Sight Height: 1.5 inches |
| Weight: 80 grains | Pressure: 29.92 inHg | Zero Range: 100 yards |
| G7 BC: 0.228 lb/in^2 | Humidity: 35 % | Look Angle: 0 degrees |
| G7 Form Factor: 0.999 | Density: 0.07243 lb/ft^3 | |
| MZL Velocity: 2925 fps| Wind Speed: 10 mph | |
| | Wind Direction: 3 O'clock| |
+------------------------+--------------------------+--------------------------+
+----------------------------- Program Output ---------------------------------+
Range Velocity Energy Trajectory TOF Drift
(yards) (fps) (ft-lb) (MILS) (sec) (MILS)
0 2925 1520 0.00 0.0000 0.00
100 2726 1320 0.00 0.1062 -0.18
200 2534 1140 -0.44 0.2204 -0.37
300 2350 981 -1.09 0.3433 -0.58
400 2174 839 -1.86 0.4760 -0.81
500 2005 714 -2.72 0.6197 -1.05
600 1844 604 -3.70 0.7757 -1.31
700 1688 506 -4.81 0.9458 -1.59
800 1539 421 -6.06 1.1319 -1.90
900 1396 346 -7.49 1.3366 -2.25
1000 1260 282 -9.14 1.5628 -2.63
</pre></div></div>
The drop and wind is near identical to my .308 pushing 155's at 2900fps, with less powder, less recoil, a lot less trimming, and less muzzle blast.
</div></div>
Well said, JPipes. Yet, there's still people that don't get that...
Hell, I have 13 firings, on my current .223ai Lapua brass and they're still going strong.
AUJohn, Plz, share your experience with the .223 @ 1k. What bullet are you using?