ORIGINAL: zrexpilot
ORIGINAL: MichaelT.
The .308 holds more velocity and retained energy at 200 yards + , but either will work.
Do what ?
Comparing bullets of the same sectional density i.e a 100 gr .243 to a 150 gr .308.
The .243 starts off faster and ends faster, it does not have the KE of the .308 ( about 200ft/lbs less@ 500 yds) but to bad energy doesnt kill.
The .243 is faster, flatter by about 7" at 500 yds, still pushing 2k fps at 500 yds, about 4" less wind drift at 500 yds.
.243 is the clear winnerat long range
Cartridge Information
Index Number
Cartridge Type
Weight (grs.)
Bullet Style
Primer No.
Ballistic Coefficient
PRA243WA
Premier® AccuTip™
95
AccuTip™
9 1/2
0.355
PRSC308WA
Premier® Scirocco™ Bonded
150
Swift™ Scirocco™ Bonded
9 1/2
0.435
PRA308WB
Premier® AccuTip™
165
AccuTip™ Boat Tail
9 1/2
0.447
Velocity (ft/sec)
Cartridge Type
Bullet
Muzzle
100
200
300
400
500
Premier® AccuTip™
95 AT
3120
2847
2590
2347
2118
1902
Premier® Scirocco™ Bonded
150 SSB
2820
2611
2410
2219
2037
1863
Premier® AccuTip™
165 AT BT
2700
2501
2311
2129
1956
1792
Energy (ft-lbs)
Cartridge Type
Bullet
Muzzle
100
200
300
400
500
Premier® AccuTip™
95 AT
2053
1710
1415
1162
946
763
Premier® Scirocco™ Bonded
150 SSB
2648
2269
1935
1640
1381
1156
Premier® AccuTip™
165 AT BT
2670
2292
1957
1661
1401
1176
Short-Range Trajectory
Cartridge Type
Bullet
50
100
150
200
250
300
Premier® AccuTip™
95 AT
0.0
0.5
zero
-1.7
-4.6
-9.2
Premier® Scirocco™ Bonded
150 SSB
0.0
zero
-1.1
-3.6
-7.6
-13.2
Premier® AccuTip™
165 AT BT
-0.1
zero
-1.3
-4.1
-8.5
-14.7
Long-Range Trajectory
Cartridge Type
Bullet
100
150
200
250
300
400
500
Premier® AccuTip™
95 AT
0.5
1.3
zero
-2.7
-6.6
-19.5
-40.2
Premier® Scirocco™ Bonded
150 SSB
1.8
1.6
zero
-3.1
-7.8
-22.7
-46.0
Premier® AccuTip™
165 AT BT
2.0
1.8
zero
-3.4
-8.6
-24.8
-50.1
The .243 is losing vel. faster than the .308. I said the .308 is holding more vel.. ( losing less per 100 yards ) than the .243. And at 500 yards, there is 5.8 inches difference, not 7 inches , and the .308 is holding about 390 ft. / lab. more energy.....not 200.
I shoot both cal.'s and I don't need to get an attitude about which does what. I can state my case without trying to demean others. Everyone has an opinion, and I can respect others opinions. But I will say that a .308 is hardly " lobbing " bullets .... Thats why it is the chosen cartridge of match shooting. But even if I disagree to some extent with what you are saying, I can still do it while allowing for your opinion.
And last time I heard, vel. isnt what kills .... A 30-30 has killed a lot of deer, but it isn't exactly a barn burner.... And if that were true, then we should all be using 22-250's and smaller faster rounds....
MET