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Wind & 204 Rugers
Posted: Sun Jun 01, 2008 11:24 am
by AZ Bullet
When I talk to friends about my beloved 20 cal, the first thing they say is it can't buck the wind. This is were my eyes start spinning to the back of my head. Are there any charts on 204s and wind? I know shooting them would be easier to show them but they would complain the bullet is too small or light. They shot the 22-250 and the 220 swift.
Re: Wind & 204 Rugers
Posted: Sun Jun 01, 2008 12:13 pm
by WrzWaldo
Yes there is.
http://wrzwaldo.org/reloading/public/204-VS/
Grab a copy of PointBlank and show them.
http://www.huntingnut.com/index.php?nam ... icle&sid=3
With a 10 MPH cross wind.
A 40 grain V-Max with a 3800 fps muzzle velocity will move about 7.75 inches at 300 yards.
A 40 V-Max out of the swift with a muzzle velocity of 4100 fps will move about 10.28 inches at 300 yards.
Sadly for your buddies the same holds true for the 22-250. The bullet with the higher BC almost always wins this battle.
They can move to a heavier bullet, but then they really get spanked on trajectory.
Code: Select all
Load Data
~~~~~~~~~
Name: .204 Cal, , 40 grn
Ballistic Coeff: 0.275
Bullet Weight: 40
Velocity: 3800
Target Distance: 250
Scope Height: 1.500
Temperature: 70
Altitude: 500
Ballistic Data
~~~~~~~~~~~~~~~
Range Elevation Velocity Energy ETA Drop Max Y 10mph Wind Deflect
0 yds -1.50 in 3800 fps 1282 fpe 0.000 sec 0.00 in -1.50 in 0.00 in
25 yds -0.52 in 3698 fps 1215 fpe 0.020 sec 0.08 in -0.58 in 0.06 in
50 yds 0.31 in 3599 fps 1150 fpe 0.041 sec 0.31 in -0.52 in 0.20 in
75 yds 0.96 in 3501 fps 1089 fpe 0.062 sec 0.71 in -0.42 in 0.44 in
100 yds 1.44 in 3407 fps 1031 fpe 0.083 sec 1.29 in -0.26 in 0.78 in
125 yds 1.74 in 3314 fps 975 fpe 0.106 sec 2.06 in -0.06 in 1.24 in
150 yds 1.83 in 3223 fps 923 fpe 0.129 sec 3.03 in 0.21 in 1.81 in
175 yds 1.71 in 3135 fps 873 fpe 0.152 sec 4.21 in 0.53 in 2.50 in
200 yds 1.37 in 3048 fps 825 fpe 0.177 sec 5.60 in 0.92 in 3.29 in
225 yds 0.81 in 2963 fps 779 fpe 0.201 sec 7.22 in 1.37 in 4.20 in
250 yds 0.00 in 2879 fps 736 fpe 0.227 sec 9.09 in 1.91 in 5.23 in
275 yds -1.08 in 2797 fps 695 fpe 0.254 sec 11.23 in 2.52 in 6.42 in
300 yds -2.44 in 2717 fps 655 fpe 0.281 sec 13.66 in 3.23 in 7.75 in
325 yds -4.10 in 2638 fps 618 fpe 0.309 sec 16.37 in 4.04 in 9.22 in
350 yds -6.06 in 2560 fps 582 fpe 0.338 sec 19.39 in 4.95 in 10.82 in
375 yds -8.35 in 2484 fps 548 fpe 0.368 sec 22.74 in 5.96 in 12.58 in
400 yds -10.96 in 2409 fps 515 fpe 0.398 sec 26.41 in 7.10 in 14.46 in
425 yds -13.98 in 2335 fps 484 fpe 0.430 sec 30.49 in 8.37 in 16.55 in
450 yds -17.42 in 2263 fps 455 fpe 0.462 sec 34.99 in 9.79 in 18.84 in
475 yds -21.29 in 2192 fps 427 fpe 0.496 sec 39.92 in 11.36 in 21.33 in
500 yds -25.61 in 2122 fps 400 fpe 0.531 sec 45.30 in 13.11 in 23.99 in
525 yds -30.39 in 2053 fps 374 fpe 0.567 sec 51.13 in 15.02 in 26.82 in
550 yds -35.72 in 1986 fps 350 fpe 0.604 sec 57.53 in 17.14 in 29.90 in
575 yds -41.45 in 1919 fps 327 fpe 0.642 sec 64.32 in 19.42 in 33.07 in
600 yds -47.90 in 1854 fps 305 fpe 0.681 sec 71.82 in 21.97 in 36.57 in
625 yds -55.08 in 1791 fps 285 fpe 0.723 sec 80.06 in 24.80 in 40.39 in
650 yds -63.00 in 1730 fps 266 fpe 0.766 sec 89.05 in 27.91 in 44.48 in
675 yds -71.68 in 1671 fps 248 fpe 0.810 sec 98.78 in 31.32 in 48.84 in
700 yds -81.12 in 1613 fps 231 fpe 0.856 sec 109.28 in 35.03 in 53.44 in
725 yds -91.33 in 1556 fps 215 fpe 0.903 sec 120.55 in 39.06 in 58.26 in
750 yds -102.31 in 1501 fps 200 fpe 0.952 sec 132.59 in 43.42 in 63.29 in
775 yds -114.56 in 1449 fps 186 fpe 1.003 sec 145.90 in 48.26 in 68.78 in
800 yds -127.92 in 1399 fps 174 fpe 1.055 sec 160.32 in 53.54 in 74.60 in
Load Data
~~~~~~~~~
Name: .224 Cal, , 40 grn
Ballistic Coeff: 0.200
Bullet Weight: 40
Velocity: 4100
Target Distance: 250
Scope Height: 1.500
Temperature: 70
Altitude: 500
Ballistic Data
~~~~~~~~~~~~~~~
Range Elevation Velocity Energy ETA Drop Max Y 10mph Wind Deflect
0 yds -1.50 in 4100 fps 1493 fpe 0.000 sec 0.00 in -1.50 in 0.00 in
25 yds -0.57 in 3950 fps 1386 fpe 0.019 sec 0.07 in -0.58 in 0.06 in
50 yds 0.21 in 3806 fps 1286 fpe 0.038 sec 0.27 in -0.53 in 0.24 in
75 yds 0.85 in 3666 fps 1194 fpe 0.058 sec 0.63 in -0.44 in 0.56 in
100 yds 1.32 in 3531 fps 1107 fpe 0.079 sec 1.14 in -0.30 in 1.01 in
125 yds 1.63 in 3400 fps 1027 fpe 0.100 sec 1.83 in -0.11 in 1.59 in
150 yds 1.74 in 3273 fps 952 fpe 0.123 sec 2.71 in 0.14 in 2.33 in
175 yds 1.65 in 3151 fps 881 fpe 0.146 sec 3.80 in 0.44 in 3.23 in
200 yds 1.34 in 3031 fps 816 fpe 0.171 sec 5.10 in 0.82 in 4.28 in
225 yds 0.80 in 2915 fps 755 fpe 0.196 sec 6.63 in 1.26 in 5.49 in
250 yds 0.00 in 2802 fps 697 fpe 0.222 sec 8.42 in 1.80 in 6.89 in
275 yds -1.08 in 2691 fps 643 fpe 0.249 sec 10.49 in 2.42 in 8.49 in
300 yds -2.46 in 2584 fps 593 fpe 0.278 sec 12.86 in 3.15 in 10.28 in
325 yds -4.16 in 2479 fps 546 fpe 0.308 sec 15.55 in 4.00 in 12.27 in
350 yds -6.20 in 2376 fps 501 fpe 0.338 sec 18.58 in 4.96 in 14.46 in
375 yds -8.65 in 2276 fps 460 fpe 0.371 sec 22.03 in 6.08 in 16.94 in
400 yds -11.54 in 2178 fps 421 fpe 0.404 sec 25.91 in 7.35 in 19.67 in
425 yds -14.87 in 2082 fps 385 fpe 0.440 sec 30.23 in 8.80 in 22.66 in
450 yds -18.73 in 1990 fps 352 fpe 0.477 sec 35.08 in 10.44 in 25.93 in
475 yds -23.03 in 1898 fps 320 fpe 0.515 sec 40.38 in 12.27 in 29.40 in
500 yds -28.07 in 1810 fps 291 fpe 0.555 sec 46.41 in 14.38 in 33.32 in
525 yds -33.86 in 1726 fps 265 fpe 0.598 sec 53.19 in 16.78 in 37.63 in
550 yds -40.41 in 1645 fps 240 fpe 0.643 sec 60.73 in 19.48 in 42.31 in
575 yds -47.72 in 1566 fps 218 fpe 0.689 sec 69.03 in 22.50 in 47.30 in
600 yds -55.93 in 1491 fps 197 fpe 0.738 sec 78.23 in 25.89 in 52.67 in
625 yds -65.18 in 1420 fps 179 fpe 0.790 sec 88.47 in 29.70 in 58.48 in
650 yds -75.72 in 1354 fps 163 fpe 0.844 sec 100.01 in 34.02 in 64.83 in
675 yds -87.50 in 1292 fps 148 fpe 0.901 sec 112.78 in 38.84 in 71.61 in
700 yds -100.59 in 1235 fps 136 fpe 0.960 sec 126.86 in 44.19 in 78.81 in
725 yds -115.30 in 1184 fps 125 fpe 1.022 sec 142.56 in 50.17 in 86.51 in
750 yds -131.63 in 1139 fps 115 fpe 1.087 sec 159.89 in 56.78 in 94.66 in
775 yds -149.72 in 1099 fps 107 fpe 1.154 sec 178.96 in 64.08 in 103.24 in
800 yds -169.68 in 1065 fps 101 fpe 1.223 sec 199.92 in 72.09 in 112.22 in
Re: Wind & 204 Rugers
Posted: Sun Jun 01, 2008 12:35 pm
by rayfromtx
http://www.eskimo.com/~jbm/calculations/traj/traj.html
This link will provide you with a ballistics calculator that will show the 204 to be superior in wind bucking abilities to many common rounds with heavier bullets. The 32 grains get blown around some but the 39 and 40 grain bullets perform quite well against the 6mm and even the 308 out to 500 yards. The bottom line is that longer heavier bullets will outperform the 204 at some point. The higher initial velocity will lose out to bullets with better ballistic coefficients. This calculator will give you a chance to find where that point occurs. Usually to outperform the 204 means punishing your shoulder and using more powder and more expensive components. The calculator has a huge database of bullets available and loading manuals can give you an idea of velocities that are acheivable with bullets that you may not be familiar with.
A for instance for comparison. I went prairie dog hunting with some guys last week that were shooting 65 grain vmax bullets at 3400 fps from a 6br. I was shooting 40 grain bergers at 3900 fps in a 204 ruger. Our wind drift was the same but they had 9 inches more drop at 500 yards. I could spot my own hits while they could not. The easiest way to sell the 204 is to take your friends hunting. My friends will have 204s next time we go hunting.
Re: Wind & 204 Rugers
Posted: Sun Jun 01, 2008 7:33 pm
by Captqc
AZ, great info from wrz and ray! That junk about the .204 and wind really chaps my ...
![mad :mad:](./images/smilies/mad.gif)
Awhile back a "gun writer" by the name of Charles Petty said that if there was anything stronger than a mouse fart the .204 would be blown off course!
![doh :doh:](./images/smilies/doh.gif)
My experience is that the .204 does just fine, you just have to know how it reacts in the wind and adjust just like any other round. Actually, I find that I tend to over compensate for the wind on my first shot and have to give it less english to make my shot. Gary
Re: Wind & 204 Rugers
Posted: Sun Jun 01, 2008 8:36 pm
by AZ Bullet
Wow thank you for the great info and sights. I will be making copes and look at the sights. After shooting a 222 all my life and now a 204 what a difference. I shot over alot of p-dogs at first. It's hard not putting the crosshairs over a target at distance.The 204 can let the air out of p-dog fast. Thanks for taking the time finding the info.