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Post by shouldernuke on Jan 11, 2015 14:12:13 GMT -5
Really? What does your calculator tell you when you enter the numbers correctly? I know what mine says and its verified at the range.... virtually the same as what steves post is .Just use his what load are you using to push to that 2500? Just wondering ?
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Post by steve46511 on Jan 11, 2015 14:12:17 GMT -5
Just trying to help the conversation stay on track. Again...no offense but the rounds capable of over a ton of energy at 500 yards are LARGE so I knew something was amiss
God Bless
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Post by steve46511 on Jan 11, 2015 14:13:38 GMT -5
200 yard zero. No higher than 3" and no lower than 3" out to 240. 12" drop at 300. 1900lbft of energy at 300. Where is the 1900 fplb at 300 coming from. I obviously am missing something.
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Post by shouldernuke on Jan 11, 2015 14:14:13 GMT -5
Just trying to help the conversation stay on track. Again...no offense but the rounds capable of over a ton of energy at 500 yards are LARGE so I knew something was amiss God Bless Thank you as well I did not catch it but thought it was way big too .
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Post by swilk on Jan 11, 2015 14:14:26 GMT -5
I think there is at least one user on this forum with a .45 cal savage that could put up some impressive numbers out much further than mine can. Both mine still run stock barrels shooting sabots.... some guys are running bore size bullets without sabots and duplex loads.
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Post by swilk on Jan 11, 2015 14:16:25 GMT -5
Steve - the 1900 comes from the hornady calculator when using that bullet with a muzzle velocity of 2500.
Nuke - I use 10x powder.
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Post by steve46511 on Jan 11, 2015 14:17:26 GMT -5
. Interesting that the ballistic calculators would vary that amount Thanks
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Post by swilk on Jan 11, 2015 14:19:53 GMT -5
What does your calc say with a MV of 2500?
Of course I have no idea what it really is but only what the calc says.
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Post by steve46511 on Jan 11, 2015 14:20:45 GMT -5
Its listed in the chart I posted. Less than 1400. All else comes out pretty much a match in trajectory....but not energy.
Interesting
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Post by swilk on Jan 11, 2015 14:23:11 GMT -5
Very interesting....that's a big difference.
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Post by shouldernuke on Jan 11, 2015 14:24:03 GMT -5
Steve - the 1900 comes from the hornady calculator when using that bullet with a muzzle velocity of 2500. Nuke - I use 10x powder. thanks here is your ballistics per the calculator with .291 bc and 300 gr 2500 fps its worse than I thought it would be between 200 -300 www.hornady.com/ballistics-resource/ballistics-calculatorBallistics Results - HP Range (yards) Velocity (fps) Energy (ft.-lb.) Trajectory (in)--------------------------------------------------Muzzle.............2500 ..........4163............ -1.5 100................2121 ..........2997............ 3.2 200................1779 ..........2107............ 0 300................1479 ..........1458............ -14.3 400................1237 ..........1019............ -44.6 500................1072 ..........765............. -97.7
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Post by steve46511 on Jan 11, 2015 14:27:17 GMT -5
LOL>......the one in the link showing the same bullet at 2300 fps is different still Odd........I've compared several ballistic programs and have never seen this kind of variation before between them. Gives one ZERO confidence in any of them IMHO. I'm sure you are as aware as anyone, what works, works........what the "charts" say is rather moot. Still ...dang......that's a big difference.
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Post by swilk on Jan 11, 2015 14:29:33 GMT -5
I wonder how the hornady calc can be so far off?
How do those numbers compare to a typical 308 load?
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Post by swilk on Jan 11, 2015 14:33:00 GMT -5
Lol...your link shows 1600 at 300 with a MV 2300.
Its just math....that's a lot of variation in what should be fairly close between calculators.
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Post by steve46511 on Jan 11, 2015 14:36:03 GMT -5
Nope.......all my fault.
I made an error in bullet weight. Good thing went back and LOOKED. What I get for typing too fast.
1904 fp lbs at 300
I stand corrected. As usual.....human error. x_xSorry
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Post by shouldernuke on Jan 11, 2015 14:36:30 GMT -5
Lol...your link shows 1600 at 300 with a MV 2300. Its just math....that's a lot of variation in what should be fairly close between calculators. www.federalpremium.com/ballistics_calculator/This one was within about 1 inch or so and close on FP there are a few variables that will change it slightly .Temp wind and mostly elevation. There is your changes So between 200 -300 yards the projectile will fall between 12 and 14 inches depending on temp and elevation and wind speed even the humidity set point can change it slightly..
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Post by swilk on Jan 11, 2015 14:39:58 GMT -5
Nope.......all my fault. I made an error in bullet weight. Good thing went back and LOOKED. What I get for typing too fast. 1904 fp lbs at 300 I stand corrected. As usual.....human error. x_xSorry No reason to be sorry.... just crunching numbers to compare what we already have vs what's being proposed.
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Post by steve46511 on Jan 11, 2015 14:42:35 GMT -5
I know I am odd but while the numbers are good reference points, little of it means much if the bullet used doesn't do it's thing , regardless of the "KE" it has.
I look more at minimum velocities for bullet performance and about the only reason I run the trajectory charts so Ill know ABOUT where the bullet's limitation is.
Actual mileage may vary but it's a good starting point for me.
God Bless
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Post by shouldernuke on Jan 11, 2015 14:45:44 GMT -5
Regardless the truth is that what we use now does not compete with what we likely be using especially in the whole range vs accuracy as well as pure energy .An that is still the point HPRs in many cals are a better choice for the job .Those arguing those facts are just showing how the rally do not get what the advantages and ballistics really mean to the average hunter who will set up a HPR at 1.5 inches high and be zero at 200 -275 yds depending what they are shooting in most cases .And still be packing around 1000 FTP 400-500 yards out and that is more than 44! has at 25 yards or the BBL in most cases .
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Post by swilk on Jan 11, 2015 14:46:25 GMT -5
That original is designed for the 45/70 so I would assume velocity at 300 is within designed velocity specs.
Never killed with it further than 200.
For giggles I ran a .415 308 bullet at 2700 through the calculator and its 8.7" low at 300 compared to my brick being 12".
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