Posted: 3/4/2012 5:48:12 AM EDT
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After a late night skimming the forums I found this in GD. Give it a shot and see how you do. Post some scores and lets see what the GA HTF is made of!
Long Range Shooty Clicky Thingy I'll go first... just got an 84. Best I got last night was 88 |
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Quoted:
I do alright on the ranging part, have no idea what I'm doing on windage. Same here. I was kinda multiplying the given windspeed by the inches in the chart and then gauging based on 19 inchs of chest size and the given wind direction. Did okay. I'll post a score when I finish. 77 I blame my distraction with getting dressed for work and my non-milspec calculator. I'll try again tomorrow night when I have a moment to sit down. I actually hit a lot on first shot....just hit the 5 zone instead of the ten. Awesome game. I used the 10x MOA the whole time. Also, no one ever taught me windspeed...but I made a guess. Did that multiplier, then divided in half since it wasn't a full on west wind, but southwest. then divided that by the whatever the number was for distance (9 at 900) in order to give me the actual MOA windage adjustment so I could actually use the reticle and not just the guy's chest. Wish I had a smoother mouse hand though, or could use my scroll wheel. |
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So the MOA relation formula they give is for IPHY. If you use that, you do not get proper ranges and not too possible to get first round hits. After the 3rd stage I started using my true MOA constant of 95.5 and got first round hits.
The wind was simple as it never changed from a 1:30 quartering wind. My wind calls were always on. I finished with a 91. I'd imaging their full featured software can provide some good challenges. |
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Quoted:
So the MOA relation formula they give is for IPHY. If you use that, you do not get proper ranges and not too possible to get first round hits. After the 3rd stage I started using my true MOA constant of 95.5 and got first round hits. The wind was simple as it never changed from a 1:30 quartering wind. My wind calls were always on. I finished with a 91. I'd imaging their full featured software can provide some good challenges. Would you mind explaining briefly what that is? Something seemed a little wonky with my ranging, though it could be totally unrelated to what you're talking about and more just me suckin' it up. |
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IPHY = Inches Per Hundred Yards aka Shooters MOA
That is 1" at 100 yards, 2" at 200 yards, 9" at 900 yards, etc. True MOA is 1.047" at 100yards, 2.094 at 200 yards, 9.423 at 900 yards The constant for IPHY is 100 The constant for True MOA is 95.5 For example......you need roughly 38 MOA to get a 30 caliber 175SMK to 1k yards if it is travelling around 2650fps If your scope adjustments were in IPHY, you would dial 38 and move the impact 380" On the other hand if they were in True MOA you would have moved the impact 397.86" That is a difference of 17.86" Same thing applies for ranging. If you measure a stop sign(30") in your reticle at 3.5 MOA the formula for True MOA is TS(in)/IS(moa) x 95.5 = Distance in Yards to target 30/3.5 = 8.57 x 95.5 = 818yards It would be the same formula in IPHY but the constant changes from 95.5 to 100 so the formula would now go like this: 30/3.5 = 8.57 x 100 = 857 A difference of 39 yards. Does that help? |
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Wow, thanks for the detailed reply! I knew the difference between 1 and 1.047, I just didn't know that's what IPHY stood for. Makes better sense now, some of my numbers were coming up off at the longer distances - I got the full program and that is especially true at the really far stuff.
Quoted:
IPHY = Inches Per Hundred Yards aka Shooters MOA That is 1" at 100 yards, 2" at 200 yards, 9" at 900 yards, etc. True MOA is 1.047" at 100yards, 2.094 at 200 yards, 9.423 at 900 yards The constant for IPHY is 100 The constant for True MOA is 95.5 For example......you need roughly 38 MOA to get a 30 caliber 175SMK to 1k yards if it is travelling around 2650fps If your scope adjustments were in IPHY, you would dial 38 and move the impact 380" On the other hand if they were in True MOA you would have moved the impact 397.86" That is a difference of 17.86" Same thing applies for ranging. If you measure a stop sign(30") in your reticle at 3.5 MOA the formula for True MOA is TS(in)/IS(moa) x 95.5 = Distance in Yards to target 30/3.5 = 8.57 x 95.5 = 818yards It would be the same formula in IPHY but the constant changes from 95.5 to 100 so the formula would now go like this: 30/3.5 = 8.57 x 100 = 857 A difference of 39 yards. Does that help? |
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95 on the first try.
It looks like the wind meter is pointing in the wrong direction on the simulator. I figured it out on the second shot We will be doing a lot of this with real rifles in Blakely this weekend. Guerrilla sniper is friday thru sunday scott www.centerfiretraining.com |
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Quoted:
95 on the first try. It looks like the wind meter is pointing in the wrong direction on the simulator. I figured it out on the second shot We will be doing a lot of this with real rifles in Blakely this weekend. Guerrilla sniper is friday thru sunday scott www.centerfiretraining.com Instructions said that it indicated which way the wind was coming from, not going. |
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91, after moving to a screen where I could read it :)
Fun, really makes me want to take a good class. All of my shooting is at known distance, and I have my dope for each distance on my buttstock. Would be cool to actually figure out range finding on the fly. Embarrassing fact time: I do not own a ranging scope of any kind :( |