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All things 300 AAC BLACKOUT
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 Post subject: 300 Blackout trajectory?
PostPosted: Sat Feb 05, 2011 12:52 pm 
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Is it close to .22 rimfire?

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PostPosted: Sat Feb 05, 2011 1:11 pm 
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No, 22lr has a BC of about 0.120.
300 AAC BLACKOUT subsonic is 0.618 BC.

300 AAC BLACKOUT

Range Velo Time of Energy Path Deflection Total Sight correction Target
city flight to at crosswind drop for setting new lead
LOS of 10.0 Mph zero range 33 fps
-------------------------------------------------------------------------------------
·Yards fps s ft.lbs. in. in. MOA in. Clicks MOA yds ·
-------------------------------------------------------------------------------------
| 0 1010 0.0000 498 -2.0 0.0 ----- 0.0 ------ ----- 0.00
| 50 993 0.1496 481 +3.4 0.2 0.38 4.3 -18.8 -6.48 1.64
X 100 977 0.3015 466 0.0 0.8 0.75 17.3 0.0 0.00 3.30
| 150 961 0.4565 452 -12.6 1.9 1.23 39.6 +23.3 +8.00 4.99
| 200 947 0.6142 438 -34.6 3.5 1.69 71.3 +48.0 +16.53 6.72


22lr
Range Velo Time of Energy Path Deflection Total Sight correction Target
city flight to at crosswind drop for setting new lead
LOS of 10.0 Mph zero range 33 fps
-------------------------------------------------------------------------------------
·Yards fps s ft.lbs. in. in. MOA in. Clicks MOA yds ·
-------------------------------------------------------------------------------------
| 0 1010 0.0000 91 -2.0 0.0 ----- 0.0 ------ ----- 0.00
| 50 934 0.1548 77 +4.0 1.1 2.12 4.5 -22.1 -7.59 1.69
X 100 874 0.3208 68 0.0 4.2 3.99 18.9 0.0 0.00 3.51
| 150 823 0.4980 60 -15.4 9.2 5.88 44.8 +28.5 +9.79 5.45
| 200 778 0.6851 54 -43.4 16.0 7.65 83.2 +60.2 +20.70 7.49


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PostPosted: Sat Feb 05, 2011 1:39 pm 
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22LR scopes are setup for supersonic ammunition. This is a case where you must compare apples to oranges. A Pride Fowler scope will be extremely close.


Load Data
~~~~~~~~~

Name: 22LR
Ballistic Coeff: 0.120
Bullet Weight: 40
Velocity: 1250
Target Distance: 100
Scope Height: 1.500
Temperature: 70
Altitude: 600

Ballistic Data
~~~~~~~~~~~~~~~
Range Elevation Velocity Energy ETA
0 yds -1.50 in 1250 fps 139 fpe 0.000 sec
25 yds 1.47 in 1166 fps 121 fpe 0.062 sec
50 yds 2.84 in 1097 fps 107 fpe 0.129 sec
75 yds 2.42 in 1043 fps 97 fpe 0.199 sec
100 yds -0.00 in 999 fps 89 fpe 0.272 sec
125 yds -4.55 in 961 fps 82 fpe 0.349 sec
150 yds -11.45 in 928 fps 77 fpe 0.428 sec
175 yds -20.81 in 899 fps 72 fpe 0.511 sec
200 yds -32.72 in 871 fps 67 fpe 0.595 sec
225 yds -47.50 in 846 fps 64 fpe 0.683 sec
250 yds -65.21 in 823 fps 60 fpe 0.773 sec
275 yds -85.89 in 801 fps 57 fpe 0.865 sec
300 yds -109.87 in 780 fps 54 fpe 0.959 sec

Load Data
~~~~~~~~~

Name: 300
Ballistic Coeff: 0.618
Bullet Weight: 220
Velocity: 1050
Target Distance: 100
Scope Height: 1.500
Temperature: 70
Altitude: 600

Ballistic Data
~~~~~~~~~~~~~~~
Range Elevation Velocity Energy ETA
0 yds -1.50 in 1050 fps 539 fpe 0.000 sec
25 yds 1.92 in 1040 fps 529 fpe 0.072 sec
50 yds 3.34 in 1031 fps 519 fpe 0.144 sec
75 yds 2.71 in 1022 fps 511 fpe 0.217 sec
100 yds 0.00 in 1014 fps 502 fpe 0.291 sec
125 yds -4.81 in 1006 fps 494 fpe 0.365 sec
150 yds -11.81 in 998 fps 486 fpe 0.440 sec
175 yds -20.85 in 990 fps 479 fpe 0.515 sec
200 yds -32.14 in 982 fps 471 fpe 0.591 sec
225 yds -45.72 in 975 fps 464 fpe 0.668 sec
250 yds -61.61 in 968 fps 458 fpe 0.745 sec
275 yds -79.86 in 961 fps 451 fpe 0.823 sec
300 yds -100.48 in 954 fps 445 fpe 0.901 sec

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PostPosted: Sat Feb 05, 2011 1:53 pm 
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22 ammo (CCI standard LR) is only 1035 fps from a Ruger 10-22:

http://rugerforum.net/ammo-dump/20632-2 ... hread.html

Velocitor did go 1255 though.

As for what the Pride-Fowler is set for - someone would need to ask them their MOA points and then compare that, rather than what they say it is for.


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PostPosted: Sat Feb 05, 2011 1:56 pm 
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http://www.rapidreticle.com/22lr3-9x32.htm

It works well.

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PostPosted: Sat Feb 05, 2011 2:31 pm 
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Just checked some Winchester 22 LR HP ....X22LRH....on a Pact pro chronograph.
The gun is a CZ452-2E with a 16 barrel.
Temp= 34.
I was 10 foot from the chronograph.
37 gr bullet.
1st shot = 1275.7 2nd shot = 1263.9 3rd shot = 1271.6.
Midway lists the velocity as 1280 fps.


It is not an exact match, but its very close out to 200 yards. Past 300 It gets way off. If you only use subs out to 250 you should be good. If a scope comes out that is less than $500 that is a perfect match, I would have one

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PostPosted: Sat Feb 05, 2011 2:40 pm 
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37 gr will have a lower BC than 40 grains. Maybe use 0.110.


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PostPosted: Sat Feb 05, 2011 2:55 pm 
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Or I could use the CCI Mini mags with a 40 bullet, but I don't have any on hand. I normally use subs in the CZ and the 37 Win in my Ruger MK II. CCI will intermittently go supersonic in my hand gun.


Load Data
~~~~~~~~~

Name: 22LR 37
Ballistic Coeff: 0.110
Bullet Weight: 37
Velocity: 1270
Target Distance: 100
Scope Height: 1.500
Temperature: 70
Altitude: 600

Ballistic Data
~~~~~~~~~~~~~~~
Range Elevation Velocity Energy ETA
0 yds -1.50 in 1270 fps 132 fpe 0.000 sec
25 yds 1.45 in 1175 fps 113 fpe 0.061 sec
50 yds 2.82 in 1099 fps 99 fpe 0.127 sec
75 yds 2.41 in 1040 fps 89 fpe 0.198 sec
100 yds 0.00 in 992 fps 81 fpe 0.272 sec
125 yds -4.59 in 953 fps 75 fpe 0.349 sec
150 yds -11.54 in 918 fps 69 fpe 0.429 sec
175 yds -20.95 in 887 fps 65 fpe 0.512 sec
200 yds -33.08 in 858 fps 61 fpe 0.598 sec
225 yds -48.10 in 832 fps 57 fpe 0.687 sec
250 yds -66.08 in 807 fps 54 fpe 0.778 sec
275 yds -87.20 in 784 fps 50 fpe 0.872 sec
300 yds -111.83 in 762 fps 48 fpe 0.970 sec

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PostPosted: Sat Feb 05, 2011 5:04 pm 
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It's more like this than anything else...

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PostPosted: Sat Feb 05, 2011 5:34 pm 
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OK. Shoot it like this.
Load Data
~~~~~~~~~

Name: 300 ss
Ballistic Coeff: 0.366
Bullet Weight: 125
Velocity: 2250
Target Distance: 200
Scope Height: 1.500
Temperature: 70
Altitude: 600

Ballistic Data
~~~~~~~~~~~~~~~
Range Elevation Velocity Energy ETA
0 yds -1.50 in 2250 fps 1405 fpe 0.000 sec
25 yds 0.42 in 2197 fps 1339 fpe 0.034 sec
50 yds 1.89 in 2144 fps 1276 fpe 0.069 sec
75 yds 2.88 in 2093 fps 1215 fpe 0.104 sec
100 yds 3.39 in 2041 fps 1156 fpe 0.140 sec
125 yds 3.35 in 1991 fps 1100 fpe 0.178 sec
150 yds 2.85 in 1941 fps 1045 fpe 0.215 sec
175 yds 1.74 in 1892 fps 993 fpe 0.254 sec
200 yds 0.00 in 1844 fps 943 fpe 0.294 sec
225 yds -2.41 in 1797 fps 896 fpe 0.335 sec
250 yds -5.52 in 1751 fps 851 fpe 0.378 sec
275 yds -9.35 in 1706 fps 807 fpe 0.422 sec
300 yds -13.93 in 1662 fps 766 fpe 0.467 sec
325 yds -19.27 in 1618 fps 727 fpe 0.513 sec
350 yds -25.39 in 1576 fps 689 fpe 0.560 sec
375 yds -32.31 in 1534 fps 653 fpe 0.607 sec
400 yds -40.24 in 1493 fps 619 fpe 0.657 sec
425 yds -49.04 in 1454 fps 586 fpe 0.707 sec
450 yds -58.99 in 1416 fps 556 fpe 0.759 sec
475 yds -70.11 in 1379 fps 528 fpe 0.813 sec
500 yds -82.40 in 1345 fps 502 fpe 0.869 sec
525 yds -95.87 in 1311 fps 477 fpe 0.925 sec
550 yds -110.53 in 1278 fps 454 fpe 0.983 sec
575 yds -126.50 in 1247 fps 432 fpe 1.042 sec
600 yds -143.94 in 1218 fps 412 fpe 1.103 sec

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