My technique for shooting is to zero at 26 yards (if using the .270 noted above), then shade slightly low (an inch or two) when shooting at 100 yards, and hold slightly high at 300. In other words, if you hold dead center on the vitals, your bullet can be 3 inches high or 3 inches low before it slips out of the vital zone. Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on Pinterest (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to share on Mastodon (Opens in new window), Click to share on Reddit (Opens in new window), Click to share on Tumblr (Opens in new window), Click to share on Pocket (Opens in new window), Click to share on Telegram (Opens in new window), Click to share on WhatsApp (Opens in new window), Click to share on Skype (Opens in new window), Click to email a link to a friend (Opens in new window), which is outdated after looking at more zero distances and the maximum point blank range concept covered in this other post, Different Zeros For Different Heros - Uncle Zo, https://unclezo.com/2020/11/26/different-zeros-for-different-heros/. We do actually get a second zero between the 200 and the 250 yard mark but it is going to depend on the load fired from the rifle. Zero Distance: 25 Yards: 25 Yards: Ballistic Coefficient.625.552: Altitude: 0 ft. 0ft. What does Zero mean? Balistic program data is never ever gospel though it only starts your dope data gathering process the "old fashioned way" as you put it is always essential. What about a 100 yard zero on a .243? All in all this is a great round for deer and medium sized game up to around 200-300 yards. The Basic start used by British snipers is to gather what is termed "real world" data 100 mtrs to 1500 mtrs then the same 100-1500 in yardage in thier log book for thier individual rifle (this applies to the std issue L115A3 by the way). Our first 243 Winchester ballistic chart from Remington shows 75 grain Premier AccuTip-V with a 100 yard zero. Context matters. Depends on what round you're firing. It makes it a lot easier to find ammo. Ammo2U.com ~ As a participant in the Amazon Associates program and other affiliate services, I may earn a small amount of money if you buy something after clicking on a link. Like i say though there are more reason why, but ballistic programs do not hold all the answers and to repeate myself aint "gospel" so your kind offer of help is unlikely to help someone who won't do it "the old fashioned way", Ho,hum sort of blows your previous views apart about group 2" group sizes for deer though don't it as that way is amounting to 4" I think what your forgetting in the above though is the bullet that is set 1" high at 100 will drop about 3" through its trajectory but that still leaves it 2" low @ 200 (3" drop at 200yds is about were your balistic program will put a 100 grn bullet from a 100yds zero). After reading the post that was running on grouping and seeing the various arguements on 200yd zero it made me wonder what grain bullets others are shooting to zero at this range.My Remmy 700 has 9 1/8 twist and groups real well with 100gr bullets, I zero at 100yds as I need my gun to be very accurate ( head shots) around this range, further out Hochstrasse 4, 60313 Frankfurt, Hesse Germany +49 69 133802450 Website Menu. That would put you on this table for the Remington Core-Lok: Range Drop Drop Windage Windage Velocity Mach Energy Time Lead Lead, (yds) (in) (moa) (in) (moa) (ft/s) (none) (ftlbs) (s) (in) (moa), 0 -1.5 *** 0.0 *** 2968.8 2.659 1956.7 0.000 0.0 ***, 25 -0.1 -0.3 0.0 0.2 2903.4 2.601 1871.5 0.026 4.5 17.2, 50 1.1 2.1 0.2 0.4 2839.1 2.543 1789.5 0.052 9.1 17.4, 75 2.0 2.6 0.5 0.6 2775.7 2.486 1710.4 0.078 13.8 17.6, 100 2.6 2.5 0.8 0.8 2713.2 2.430 1634.3 0.106 18.6 17.8, 125 2.9 2.3 1.3 1.0 2651.5 2.375 1560.9 0.134 23.5 18.0, 150 3.0 1.9 1.9 1.2 2590.8 2.320 1490.1 0.162 28.6 18.2, 175 2.7 1.5 2.6 1.4 2530.8 2.267 1421.9 0.192 33.7 18.4, 200 2.0 1.0 3.4 1.6 2471.6 2.214 1356.2 0.222 39.0 18.6, 225 1.0 0.4 4.4 1.9 2413.3 2.162 1292.9 0.252 44.4 18.8, 250 -0.4 -0.1 5.5 2.1 2355.7 2.110 1232.0 0.284 49.9 19.1, 275 -2.1 -0.7 6.7 2.3 2298.9 2.059 1173.2 0.316 55.6 19.3, 300 -4.3 -1.4 8.1 2.6 2242.8 2.009 1116.7 0.349 61.4 19.6, 325 -6.9 -2.0 9.6 2.8 2187.5 1.959 1062.3 0.383 67.4 19.8, 350 -10.0 -2.7 11.2 3.1 2132.9 1.910 1010.0 0.418 73.5 20.1, 375 -13.5 -3.4 13.1 3.3 2079.1 1.862 959.7 0.453 79.8 20.3, 400 -17.6 -4.2 15.1 3.6 2026.1 1.815 911.4 0.490 86.2 20.6, 425 -22.1 -5.0 17.2 3.9 1974.0 1.768 865.1 0.527 92.8 20.8, 450 -27.3 -5.8 19.5 4.1 1922.6 1.722 820.6 0.566 99.6 21.1, 475 -33.0 -6.6 22.0 4.4 1872.1 1.677 778.1 0.605 106.5 21.4, 500 -39.3 -7.5 24.7 4.7 1822.5 1.632 737.4 0.646 113.7 21.7. And so on. Enter your email address to subscribe to this blog and receive notifications of new posts by email. It was advocated as hold on the nose POA and your POI would never be under the chin or over the head from contact shot to 200 yards. Input your hunting conditions to see the drop, drift, bullet trajectory, velocity, and energy in easy-to-read ballistics charts and graphs. As you can see, the 200-yard zero is very effective, and if your target range will accommodate it, great. Its almost like the folks believed the 50/200 yard zero granted any rifle or cartridge mystical powers to get a good enough hit on any target up to about 250 or 300 yards. The scope (line of sight) is mounted 1.5 inches over the middle of the bore. This chart does not account for atmospheric conditions, so if you want to take in to effect these things check out the calculators official page. The Basic start used by British snipers is to gather what is termed "real world" data 100 mtrs to 1500 mtrs then the same 100-1500 in yardage in thier log book for thier individual rifle and record it. Again, we'll zero at 200. Its got a muzzle velocity of 3,060 fps. Trajectory for Custom .243 90 TGK #4103 AMMO at 3200 Feet per Second At an Elevation Angle of: 0 degrees Ballistic Coefficients of: 0.39 0.37 0.33 0.33 0.33 Velocity Boundaries (Feet per Second) of: 2720 2040 2040 2040 Wind Direction is: 3.0 o'clock and a Wind Velocity of: 10.0 Miles per hour

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