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Joined: May 2005
Posts: 1,862 Likes: 2
Campfire Regular
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Campfire Regular
Joined: May 2005
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Tabular trajectory data at Std.ICAO Atmosphere
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Gun / Ammunition : 7 mm Rem Ultra Mag
Bullet Type : .284, 175, Hornady ELD-X 2841 G7
Bullet Weight : 175 grains or 11.34 Grams
Muzzle Velocity : 3105 fps
Twist Length : 12.0 in. (RH)
Gyro. Stability : 0.84
Crosswind Speed : 5.0 Mph
Ballistic Coefficient(s) (G1) :
C1_1=0.347@V>0 fps;
Table of Various Zero Ranges - Trajectory Path to LOS in inches
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Range 50 yd. 100 yd. 150 yd. 200 yd. 250 yd. 300 yd. 350 yd. 400 yd. 450 yd. 500 yd.
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50 yd. Zero X +0.5 -0.1 -1.9 -4.9 -9.5 -15.7 -23.7 -33.5 -45.8
100 yd. Zero -0.3 X -0.8 -2.9 -6.2 -11.0 -17.5 -25.7 -35.8 -48.3
150 yd. Zero 0.0 +0.6 X -1.8 -4.8 -9.3 -15.5 -23.5 -33.3 -45.5
200 yd. Zero +0.5 +1.4 +1.3 X -2.6 -6.7 -12.5 -20.0 -29.3 -41.1
250 yd. Zero +1.0 +2.5 +2.9 +2.1 X -3.6 -8.8 -15.8 -24.7 -35.9
300 yd. Zero +1.6 +3.7 +4.7 +4.5 +3.0 X -4.6 -11.0 -19.3 -29.9
350 yd. Zero +2.2 +5.0 +6.7 +7.1 +6.3 +4.0 X -5.7 -13.3 -23.3
400 yd. Zero +3.0 +6.4 +8.8 +10.0 +9.9 +8.3 +5.0 X -6.8 -16.1
450 yd. Zero +3.7 +8.0 +11.1 +13.0 +13.7 +12.8 +10.3 +6.1 X -8.5
500 yd. Zero +4.6 +9.7 +13.6 +16.4 +18.0 +18.0 +16.3 +12.9 +7.7 X
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328 yd. PB Zero +2.0 +4.4 +5.8 +5.9 +4.8 +2.2 -2.1 -8.1 -16.0 -26.3
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Velocity fps. 2963.0 2825.6 2692.2 2562.7 2436.6 2314.3 2195.5 2080.0 1967.7 1859.6
Energy ft.lbs. 3411.3 3102.1 2816.2 2551.7 2306.9 2081.1 1873.0 1681.1 1504.5 1343.6
Deflection in. -0.1 -0.4 -0.9 -1.6 -2.5 -3.7 -5.2 -7.0 -9.0 -11.4
Correction MOA/mph -0.029 -0.071 -0.112 -0.152 -0.190 -0.236 -0.284 -0.332 -0.379 -0.434
Time sec 0.049 0.101 0.156 0.213 0.273 0.336 0.403 0.473 0.546 0.624
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Joined: Jan 2023
Posts: 179
Campfire Member
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Campfire Member
Joined: Jan 2023
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I have a 7mm ultra mag, it is a laser. Your friend exaggerated a touch. Mine could use a new stock , preferably one that weighs 15 lbs. It sits a lot now, it was fine when I had a muscle a few years ago.
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Joined: Jul 2007
Posts: 24,669 Likes: 6
Campfire Ranger
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Campfire Ranger
Joined: Jul 2007
Posts: 24,669 Likes: 6 |
If he's good with tractors, I'd let him think what he wants. 
![[Linked Image from i.imgur.com]](https://i.imgur.com/X0n16mr.png) WWP53D
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Joined: Jan 2002
Posts: 2,250 Likes: 1
Campfire Regular
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Campfire Regular
Joined: Jan 2002
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If he's good with tractors, I'd let him think what he wants. Lol. Good point!
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Joined: Oct 2013
Posts: 18,978 Likes: 6
Campfire Ranger
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Campfire Ranger
Joined: Oct 2013
Posts: 18,978 Likes: 6 |
Let him think what he wants. My thoughts exactly. People worry about others people things/thoughts too much.
Last edited by 10gaugemag; 06/11/23.
The last time that bear ate a lawyer he had the runs for 33 days!
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Joined: Jan 2013
Posts: 420
Campfire Member
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Campfire Member
Joined: Jan 2013
Posts: 420 |
With such precise, flat trajectory measurements, maybe he's factoring in the curvature of the earth somehow. At 8" per mile that's 2" per quarter mile (440 yds) it could make a difference!
Or more likely he's just a better tractor man than he is a ballistician...
After all it's a hunting story, right?
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Joined: Oct 2006
Posts: 24,755 Likes: 30
Campfire Ranger
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Campfire Ranger
Joined: Oct 2006
Posts: 24,755 Likes: 30 |
I figured it out, he's talking about feet not yards, on at 300' , 1'' high @ 200 feet, 1'' low @ 400 feet.
hahahaha >>am i right ,, am i right ,, oh Lort
over
PRESIDENT TRUMP 2024/2028 !!!!!!!!!!
Posted by Bristoe
The people wringing their hands over Trump's rhetoric don't know what time it is in America.
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Joined: Dec 2013
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Campfire Outfitter
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OP
Campfire Outfitter
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If he's good with tractors, I'd let him think what he wants. You may be right. Proving someone wrong is not a way to make friends.
Patriotism (and religion) is the last refuge of a scoundrel.
Jesus: "Take heed that no man deceive you."
Hebrew Roots Judaizer
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Joined: Jul 2015
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Campfire Outfitter
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Campfire Outfitter
Joined: Jul 2015
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Using the Hornady ballistic calculator I get 3" high at 100 yards and 3.6 high at 200 yards. 8" low at 400., 3100fps launch speed 0.95 G1 BC So, if the guy is only capable of shooting ~8" groups at 400, then checks his zero with 1 or 2 shots at 400, it is conceivable that shot(s) could land only 1" low at 400. But shooting more would ruin that illusion.
Politics is War by Other Means
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Joined: Jan 2010
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Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2010
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He’s full of shìt, but who cares?
P
Obey lawful commands. Video interactions. Hold bad cops accountable. Problem solved.
~Molɔ̀ːn Labé Skýla~
Member #547
Join date 3/09/2001
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Joined: Aug 2014
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Campfire Tracker
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Campfire Tracker
Joined: Aug 2014
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I work with a couple of guys that say they shoot fast magnums and exagerate the trajectory. I guess they think I am stupid and can't look at the ammo website to see what they claim it does. I just smile and nod my head and say wow that is impressive. Seems like they never have any deer pictures to show when the season is in.
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Joined: Dec 2004
Posts: 14,488
Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2004
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You guys are all fullocrap. It's what is stamped on the case head that makes for a good flat-shooting cartridge.
Sheesh.
Hold into the headstamp!
Don't be the darkness.
America will perish while those who should be standing guard are satisfying their lusts.
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Joined: Jan 2009
Posts: 2,001
Campfire Regular
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Campfire Regular
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You know quite scientifically what you know. He believes what he believes…which isn’t fatal. If you disprove his opinion, what do you achieve? Good opportunity to lose a friendship. Since you’re not espousing his claim you’re not in the splatter zone. Let ‘em whirl.
America, Our Country and we’re taking it back.
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Joined: Feb 2010
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Campfire Ranger
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Campfire Ranger
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NRA Life,Endowment,Patron or Benefactor since '72.
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Joined: Mar 2013
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Campfire Tracker
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Is his name Mike? Lol. I got a buddy who basically thinks the same thing about 7mm RM.
while they are a flat shooting SOBs they aren’t lasers or defy gravity
All of them do something better than the 30-06, but none of them do everything as well.
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Joined: Dec 2009
Posts: 5,253 Likes: 6
Campfire Tracker
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Campfire Tracker
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** hunts deer with a 7 mag
** shoots deer at 100 yards or less
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Joined: Nov 2004
Posts: 10,076 Likes: 9
Campfire Outfitter
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Campfire Outfitter
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I knew a guy that was always bragging at how awesome and how powerful his 7 mag reloads were. He said his 150g bullets were going over 3300 fps. This was over 20 years ago when few people owned chronographs. I owned one back then so I took it with and went shooting with him. I had just bought a blr in 308 and was working on a load for it.
I set up the chronograph and had him shoot his 7 mag over it. It clocked a bit over 2700 with his awesome load. He said my chrony didn't work and read slow. I pulled out the blr and put one over it and clocked 2820. I said that's about what I expected with that 308 load from a 20" barrel. He ended up shooting about 10 more rounds of 7mag over my chrony and they were all around 2700. He still didn't believe it because that had been his killer load for years. He also went one and one about how superior his 7 mag was to my 308. I said in most cases that's true but not with his reloads.
My chrony ruined the dreams of many reloaders back then when few people had used one.
Bb
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Campfire Outfitter
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OP
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I knew a guy that was always bragging at how awesome and how powerful his 7 mag reloads were. He said his 150g bullets were going over 3300 fps. This was over 20 years ago when few people owned chronographs. I owned one back then so I took it with and went shooting with him. I had just bought a blr in 308 and was working on a load for it.
I set up the chronograph and had him shoot his 7 mag over it. It clocked a bit over 2700 with his awesome load. He said my chrony didn't work and read slow. I pulled out the blr and put one over it and clocked 2820. I said that's about what I expected with that 308 load from a 20" barrel. He ended up shooting about 10 more rounds of 7mag over my chrony and they were all around 2700. He still didn't believe it because that had been his killer load for years. He also went one and one about how superior his 7 mag was to my 308. I said in most cases that's true but not with his reloads.
My chrony ruined the dreams of many reloaders back then when few people had used one.
Bb I was gifted a 7mm RM Model 700 BDL once upon a time. With a max load of H4831 and a 160 NP I was getting a little over 2700fps through my chrony which had proved to record speed accurately. I had the chance to trade it for a left hand model 700 BDL IN .270W. My son in law is left handed and so is my grand daughter so I gifted the .270 to them. There was really nothing wrong with the 7mm except it was slow and recoiled pretty strong and trajectory was no better than my .30-06 with 180 SST. So I just shoot the '06
Patriotism (and religion) is the last refuge of a scoundrel.
Jesus: "Take heed that no man deceive you."
Hebrew Roots Judaizer
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Posts: 7,128
Campfire Tracker
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Hastings,
When I was a kid I remember getting the data from a bullet rise mid-range trajectory chart confused with it meaning bullet drop. I think your friend is more confused than I was.
It would probably be OK for your friendship to shoot targets together if you don't rub it in.
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Joined: Sep 2011
Posts: 45,502 Likes: 30
Campfire 'Bwana
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Campfire 'Bwana
Joined: Sep 2011
Posts: 45,502 Likes: 30 |
I'd guess he's using Cermalube
The desert is a true treasure for him who seeks refuge from men and the evil of men.
In it is contentment
In it is death and all you seek
(Quoted from "The Bleeding of the Stone" Ibrahim Al-Koni)
member of the cabal of dysfunctional squirrels?
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