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.308 or .243

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.308 or .243

Old 07-30-2008, 08:21 PM
  #11  
 
MichaelT.'s Avatar
 
Join Date: Jan 2004
Location: El Dorado, Arkansas
Posts: 2,174
Default RE: .308 or .243

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 [email protected] 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
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Old 07-30-2008, 08:35 PM
  #12  
Giant Nontypical
 
jeepkid's Avatar
 
Join Date: Mar 2006
Location: ****ifornia
Posts: 5,041
Default RE: .308 or .243

Either one will do the job just fine. I would choose the .243 just because it will have less recoil, but the animal won't know the difference.
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Old 07-30-2008, 09:18 PM
  #13  
Nontypical Buck
 
zrexpilot's Avatar
 
Join Date: Nov 2003
Location: Texas
Posts: 2,695
Default RE: .308 or .243

lets compare apples to apples
that 9" difference @ 500 yds
and what sheds less velocity- .243
and what sheds less energy--- .243






Cartridge Information




Index Number
Cartridge Type
Weight (grs.)
Bullet Style
Primer No.
Ballistic Coefficient

R243W3
Remington® Express®
100
Pointed Soft Point Core-Lokt®
9 1/2
0.356

R308W1
Remington® Express®
150
Pointed Soft Point Core-Lokt®
9 1/2
0.314



Velocity (ft/sec)




Cartridge Type
Bullet
Muzzle
100
200
300
400
500

Remington® Express®
100 PSP CL
2960
2697
2449
2215
1993
1786

Remington® Express®
150 PSP CL
2820
2533
2263
2009
1774
1560



Energy (ft-lbs)




Cartridge Type
Bullet
Muzzle
100
200
300
400
500

Remington® Express®
100 PSP CL
1945
1615
1332
1089
882
708

Remington® Express®
150 PSP CL
2648
2137
1705
1344
1048
810



Short-Range Trajectory




Cartridge Type
Bullet
50
100
150
200
250
300

Remington® Express®
100 PSP CL
0.1
0.7
zero
-2.0
-5.4
-10.4

Remington® Express®
150 PSP CL
0.0
zero
-1.2
-3.9
-8.4
-14.7



Long-Range Trajectory




Cartridge Type
Bullet
100
150
200
250
300
400
500

Remington® Express®
100 PSP CL
1.6
1.5
zero
-2.9
-7.5
-22.1
-45.4

Remington® Express®
150 PSP CL
2.0
1.7
zero
-3.4
-8.8
-26.2
-54.8
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Old 07-30-2008, 09:51 PM
  #14  
 
MichaelT.'s Avatar
 
Join Date: Jan 2004
Location: El Dorado, Arkansas
Posts: 2,174
Default RE: .308 or .243

Thats fine zreex .... you choose your bullet and I'll choose mine .... we can both back our opinion with different charts... it an opinion .... no right and no wrong...

It's kind of like accounting, numbers can be shaped to fit what ever the accountant needs.

Good luck this season....
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Old 07-30-2008, 10:08 PM
  #15  
Typical Buck
 
Join Date: Jan 2008
Location: kentucky
Posts: 577
Default RE: .308 or .243

I love both of these calibers,and for varmint and deer I would shoot either and have complete confidence in their killing ability out to 350yards or so after that I would have to go with the 308 and hornady light magnum ammo.but this is my opinion I own both of these calibers and many others,and love them both!
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Old 07-30-2008, 10:11 PM
  #16  
Nontypical Buck
 
zrexpilot's Avatar
 
Join Date: Nov 2003
Location: Texas
Posts: 2,695
Default RE: .308 or .243

yup, we can go around and around. LOL
but in this ballistic searching I found a new round loaded for the .243.
Its listed on the federal website.
an 80gr speer hot core SP.
WOW, that thing is flying and is listed as a medium game round. It surpassed the 85gr sierra gameking in every department.
You .243 shooters, have you seen this yet.
34" drop at 500 yds and over 2k fps at that distance.
NChawkey have you seen this round ? I know you like the 85gr.
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Old 07-30-2008, 10:20 PM
  #17  
Nontypical Buck
 
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Join Date: Nov 2003
Location: Texas
Posts: 2,695
Default RE: .308 or .243






General Information:









Load No[/align]

Caliber[/align]

Grains/ Grams[/align]

Bullet Style[/align]

Brand[/align]

Use[/align]

[align=center]243AS[/align]
[align=center]243 Win. (6.16x51mm)[/align]
[align=center]80 / 5.18[/align]
[align=center]Speer Hot-Cor SP[/align]
[align=center]PowerShok[/align]
[align=center]
document.write(FederalBallisticsDetails.GetUsages( '2 ',true));
[/align]

[align=center]6AS[/align]
[align=center]6mm Rem.[/align]
[align=center]80 / 5.18[/align]
[align=center]Soft Point[/align]
[align=center]PowerShok[/align]
[align=center]
document.write(FederalBallisticsDetails.GetUsages( '2 ',true));
[/align]

[align=center]P2506D[/align]
[align=center]25-06 Rem.[/align]
[align=center]100 / 6.48[/align]
[align=center]Nosler Ballistic Tip[/align]
[align=center]Premium VitalShok[/align]
[align=center]
document.write(FederalBallisticsDetails.GetUsages( '2 ',true));
[/align]
Ballistics Comparisons:








Velocity in Feet per Second (To nearest 10 FPS)
[align=center]
Velocity[/align]


Load No[/align]

Caliber[/align]

Muzzle[/align]

100 Y[/align]

200 Y[/align]

300 Y[/align]

400 Y[/align]

500 Y[/align]

[align=center]243AS[/align]
[align=center]243 Win. (6.16x51mm)[/align]
[align=center]3330[/align]
[align=center]3051[/align]
[align=center]2790[/align]
[align=center]2543[/align]
[align=center]2309[/align]
[align=center]2088[/align]

[align=center]6AS[/align]
[align=center]6mm Rem.[/align]
[align=center]3400[/align]
[align=center]3117[/align]
[align=center]2851[/align]
[align=center]2601[/align]
[align=center]2364[/align]
[align=center]2140[/align]

[align=center]P2506D[/align]
[align=center]25-06 Rem.[/align]
[align=center]3220[/align]
[align=center]2968[/align]
[align=center]2729[/align]
[align=center]2503[/align]
[align=center]2288[/align]
[align=center]2084[/align]








Energy in Foot Pounds (To nearest 5 Foot Pounds)
[align=center]
Energy[/align]


Load No[/align]

Caliber[/align]

Muzzle[/align]

100 Y[/align]

200 Y[/align]

300 Y[/align]

400 Y[/align]

500 Y[/align]

[align=center]243AS[/align]
[align=center]243 Win. (6.16x51mm)[/align]
[align=center]1970[/align]
[align=center]1654[/align]
[align=center]1382[/align]
[align=center]1148[/align]
[align=center]947[/align]
[align=center]774[/align]

[align=center]6AS[/align]
[align=center]6mm Rem.[/align]
[align=center]2053[/align]
[align=center]1725[/align]
[align=center]1444[/align]
[align=center]1202[/align]
[align=center]993[/align]
[align=center]813[/align]

[align=center]P2506D[/align]
[align=center]25-06 Rem.[/align]
[align=center]2302[/align]
[align=center]1955[/align]
[align=center]1654[/align]
[align=center]1391[/align]
[align=center]1162[/align]
[align=center]964[/align]








Wind Drift in Inches (at 10 MPH)
[align=center]
Wind Drift[/align]


Load No[/align]

Caliber[/align]

100 Y[/align]

200 Y[/align]

300 Y[/align]

400 Y[/align]

500 Y[/align]

[align=center]243AS[/align]
[align=center]243 Win. (6.16x51mm)[/align]
[align=center]0.7[/align]
[align=center]3.0[/align]
[align=center]6.9[/align]
[align=center]12.8[/align]
[align=center]21.1[/align]

[align=center]6AS[/align]
[align=center]6mm Rem.[/align]
[align=center]0.7[/align]
[align=center]2.9[/align]
[align=center]6.8[/align]
[align=center]12.5[/align]
[align=center]20.5[/align]

[align=center]P2506D[/align]
[align=center]25-06 Rem.[/align]
[align=center]0.7[/align]
[align=center]2.8[/align]
[align=center]6.6[/align]
[align=center]12.3[/align]
[align=center]20.1[/align]








Average Range
[align=center]
Average Range[/align]


Load No[/align]

Caliber[/align]

50 Y[/align]

100 Y[/align]

200 Y[/align]

300 Y[/align]

[align=center]243AS[/align]
[align=center]243 Win. (6.16x51mm)[/align]
[align=center]-0.3[/align]
[align=center][/align]
[align=center]-2.2[/align]
[align=center]-9.0[/align]

[align=center]6AS[/align]
[align=center]6mm Rem.[/align]
[align=center]-0.3[/align]
[align=center][/align]
[align=center]-2.1[/align]
[align=center]-8.5[/align]

[align=center]P2506D[/align]
[align=center]25-06 Rem.[/align]
[align=center]-0.3[/align]
[align=center][/align]
[align=center]-2.5[/align]
[align=center]-9.6[/align]








Long Range
[align=center]
Long Range[/align]


Load No[/align]

Caliber[/align]

50 Y[/align]

100 Y[/align]

200 Y[/align]

300 Y[/align]

400 Y[/align]

500 Y[/align]

[align=center]243AS[/align]
[align=center]243 Win. (6.16x51mm)[/align]
[align=center]0.2[/align]
[align=center]1.1[/align]
[align=center][/align]
[align=center]-5.6[/align]
[align=center]-16.6[/align]
[align=center]-34.2[/align]

[align=center]6AS[/align]
[align=center]6mm Rem.[/align]
[align=center]0.2[/align]
[align=center]1.0[/align]
[align=center][/align]
[align=center]-5.4[/align]
[align=center]-15.8[/align]
[align=center]-32.6[/align]

[align=center]P2506D[/align]
[align=center]25-06 Rem.[/align]
[align=center]0.3[/align]
[align=center]1.2[/align]
[align=center][/align]
[align=center]-5.9[/align]
[align=center]-17.3[/align]
[align=center]-35.5[/align][/align]


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zrexpilot is offline  
Old 07-30-2008, 10:38 PM
  #18  
Typical Buck
 
Join Date: Jan 2008
Location: kentucky
Posts: 577
Default RE: .308 or .243

try the hornady 58grain v-max at 3760fps and you've got a great long range varmint gun,my rem.700 loves them and my savage 110 will shoot them around 1 1/2 inch groups.I dont think they are heavy enough for deer though,I'm sure many have been killed with them,for deer I like the 100 grain federal fusion in 243 and the 150 or 165 light mag in 308.
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Old 07-30-2008, 10:52 PM
  #19  
 
MichaelT.'s Avatar
 
Join Date: Jan 2004
Location: El Dorado, Arkansas
Posts: 2,174
Default RE: .308 or .243

ORIGINAL: zrexpilot

yup, we can go around and around. LOL
but in this ballistic searching I found a new round loaded for the .243.
Its listed on the federal website.
an 80gr speer hot core SP.
WOW, that thing is flying and is listed as a medium game round. It surpassed the 85gr sierra gameking in every department.
You .243 shooters, have you seen this yet.
34" drop at 500 yds and over 2k fps at that distance.
NChawkey have you seen this round ? I know you like the 85gr.
Yup, that sucker is moving, but I personally have never felt very comfortable going that light in a .243 round for deer. I get a little uneasy going below 95 gr. I know a lot of folks do, and with favorable results, but I guess I just want a little more lead thrown at the deer. Maybe I feel that lighter bullets may have a tendancy to explode ( fragment ) easier on impact, and not get penetration. I don't have any data to back this up, just kind of a personal feeling.

But none the less, that 80 gr. momma is flying.

MET

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Old 07-30-2008, 11:08 PM
  #20  
Typical Buck
 
Join Date: Jan 2008
Location: kentucky
Posts: 577
Default RE: .308 or .243

I once read an article about this on an antilope hunt where the light bullet exploded on impact and they followed the goat for several miles and shot it again,man that would be hard to do on a whitetail in ky.thats why I like 100grainers as a minimun for deer,but thats just my opinion.I normally use 150's.but I have killed many deer with my 243 also,100 grain federal fusions.
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