If you want to take your 308 out to 1400 yards or basically duplicate 6.5mm ballistics, check these out. Buyer beware, they ain't cheep.
http://www.warner-tool.com/flat-line-projectiles
If you want to take your 308 out to 1400 yards or basically duplicate 6.5mm ballistics, check these out. Buyer beware, they ain't cheep.
http://www.warner-tool.com/flat-line-projectiles
Here I am with my plinking SMK's :p
155gr TMk has a G1 BC of .519 at 1900fps and faster.
You can shoot some bullets way past the point where they go sub sonic.. some bullets do not get get stupid when transitioning to sub sonic from super sonic.
I wonder what the BC is on the 155 gr Flat Line at different velocities?
I also wonder if it stays stable into the sub sonic transition
Here is a .600BC 155gr 30 cal. they have others. Yea and also expensive. No idea on the flight to sub sonic.
http://www.alcobullets.com/product/155-gr-308-bullets/
You can shoot some bullets way past the point where they go sub sonic.. some bullets do not get get stupid when transitioning to sub sonic from super sonic.
I wonder what the BC is on the 155 gr Flat Line at different velocities?
I also wonder if it stays stable into the sub sonic transition
Here is a .600BC 155gr 30 cal. they have others. Yea and also expensive. No idea on the flight to sub sonic.
http://www.alcobullets.com/product/155-gr-308-bullets/
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it might make it that far but i bet it wont go through both sides of a coke can.
Want to bet? Looks to me that it moves the AR500 plate sufficient enough to have punched a hole in a coke can. I would venture a guess that it's got a retained velocity of some where around 1,100-1,250fps
Some math for you guys to chew on.
155gr of the above bullet Jcan posted moving 2800fps from the muzzle.
................................1500yards = 1,028 fps 357 ft.lbs energy.
45acp 230gr FMJ from the muzzle 845 fps 357 ft.lbs energy.
45acp 230gr FMJ from 50 yards out 813 fps 338 ft.lbs energy.
155gr of the above at 1600 yards..... 989 fps 337 ft.lbs energy.
I killed a deer where it stood at 47 paces with a FMJ 230gr fired from my 45acp pistol. bang flop.
I would not want to be shot at at 2000 yards out from the 155gr.
36gr .22 LR at 1400 fps 1,065 fps at 100 yards and 91 lb energy. 200 yards it is 909 fps and 66 energy.
You can still drop critters at 200 yards with the little .22.
The above 180gr at 2500fps muzzle will be at 1500 yards 1102 fps and 502 energy.
2,000 yards it is 956 fps and 365 ft.lbs energy.
Using shooterscalculator
http://www.shooterscalculator.com/b...M2+HORNADY+V-MAX+17gr&submitst=+Create+Chart+
155gr of the above bullet Jcan posted moving 2800fps from the muzzle.
................................1500yards = 1,028 fps 357 ft.lbs energy.
45acp 230gr FMJ from the muzzle 845 fps 357 ft.lbs energy.
45acp 230gr FMJ from 50 yards out 813 fps 338 ft.lbs energy.
155gr of the above at 1600 yards..... 989 fps 337 ft.lbs energy.
I killed a deer where it stood at 47 paces with a FMJ 230gr fired from my 45acp pistol. bang flop.
I would not want to be shot at at 2000 yards out from the 155gr.
36gr .22 LR at 1400 fps 1,065 fps at 100 yards and 91 lb energy. 200 yards it is 909 fps and 66 energy.
You can still drop critters at 200 yards with the little .22.
The above 180gr at 2500fps muzzle will be at 1500 yards 1102 fps and 502 energy.
2,000 yards it is 956 fps and 365 ft.lbs energy.
Using shooterscalculator
http://www.shooterscalculator.com/b...M2+HORNADY+V-MAX+17gr&submitst=+Create+Chart+
If you guys are shooting deer or bad guys or steel at say real distances like 300 yards or maybe 500 yards.
Use that calculator and your current velocity with your current favorite accurate bullet.
Then look at the drop at those real distances.
Then take the above very high BC bullet and plug it in .. you may be surprised at 300 yards not much different that what you have now.
Then take the heavier pill allow for velocity drop of it and plug in the numbers.
At 300 yards I have 3" less drop with my 155gr .475bc bullet than the above 706bc 180 gr.. it would not be justifiable for the distances I shoot to use a higher BC slower bullet.
I got all caught up in the higher BC of the Tipped match kings.. the 168gr accuracy node in my .308 would have it dropping much more than my 155gr A-Max at killing distances.
Lesson learned.. OH and a couple tests performed with the 168A-Max vs the 168 Tipped match king ,,, the tipped match king penetrated deeper.
The 168A-max is an excellent animal killing bullet. At least the steer and deer I killed thought so. Bang! shudder and fall over.
Math is nice especially if you use it.
Use that calculator and your current velocity with your current favorite accurate bullet.
Then look at the drop at those real distances.
Then take the above very high BC bullet and plug it in .. you may be surprised at 300 yards not much different that what you have now.
Then take the heavier pill allow for velocity drop of it and plug in the numbers.
At 300 yards I have 3" less drop with my 155gr .475bc bullet than the above 706bc 180 gr.. it would not be justifiable for the distances I shoot to use a higher BC slower bullet.
I got all caught up in the higher BC of the Tipped match kings.. the 168gr accuracy node in my .308 would have it dropping much more than my 155gr A-Max at killing distances.
Lesson learned.. OH and a couple tests performed with the 168A-Max vs the 168 Tipped match king ,,, the tipped match king penetrated deeper.
The 168A-max is an excellent animal killing bullet. At least the steer and deer I killed thought so. Bang! shudder and fall over.
Math is nice especially if you use it.
Those who are buying these bullets are probably shooting well beyond 500 yards where the heaver weight/higher BC bullet comes into play.
I shoot a 7WSM and routinely shoot well beyond 500 yards. In fact, that's about my starting point. I was out two weeks ago gathering additional data with my uncle and son shooting steel 600-900 yards for an upcoming antelope hunt.
168gr Berger, 3,050fps, G1 BC 0.628 (100yd zero), 10mph 3 o'clock wind
500yds- 2376fps, 37.5" drop, 10.5" drift, 2106lbs energy
1,000yds - 1794fps, 231" drop, 47" drift, 1200lbs energy
1,500yds - 1289fps, 706" drop, 123" drift, 620lbs energy
180gr Berger, 2,900fps, G1 BC 0.680 (100yd zero), 10mph 3 o'clock wind
500yds - 2297fps, 42" drop, 10" drift, 2108lbs energy
1000yds - 1770fps, 250" drop, 46" drift, 1252lbs energy
1500yds - 1308fps, 746" drop, 118" drift, 684lbs energy
As one can see, a heaver slower bullet with a higher BC will eventually out perform a lighter faster lower BC bullet. Granted, drop is greater but range to target is much easier to compute than wind speed/direction throughout bullet flight. This is where the higher BC bullet has the advantage.
NOTE, I've never taken my rifle out to 1,500yds.
I was thinking you would post that.
600 yards and farther and heavy winds that we deal with all the time will justify a High BC heavy bullet.
You can take advantage of those with the ranges you are shooting.
I have not honed my skills enough to try long shots(900 yards) on table meat.
Vermin on the other hand.
600 yards and farther and heavy winds that we deal with all the time will justify a High BC heavy bullet.
You can take advantage of those with the ranges you are shooting.
I have not honed my skills enough to try long shots(900 yards) on table meat.
Vermin on the other hand.
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