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.308 Bullet Weight effects past 1,000 Yds

 
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  #8  
Old 08-19-2013, 11:44 PM
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Re: .308 Bullet Weight effects past 1,000 Yds

Quote:
Originally Posted by Bart B View Post
Marksmanship. . . . Anyone can shoot 5 rounds at 500 yards the size of a quarter. If they do it once, it's luck. If they do it every time, it's skill. I know of a guy who shot 10 or more egg size and smaller ten-shot groups in a row at 600 yards with his .308 Win.
I can shoot egg sized groups @ 600 yards EVERY time. That is, if the egg in question is about 18" in diameter. What kind of egg do you think that would be?

Just so ya know, my rifle is capable of much better than that. The nut drivin' it... not so much.
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  #9  
Old 09-03-2013, 07:54 AM
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Join Date: Nov 2012
Location: Camp Lejeune
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Re: .308 Bullet Weight effects past 1,000 Yds

Quote:
Originally Posted by wyomingblizzard View Post
I know there are shooters out there that can hit, with consistency, at 1500 with thier 308. I also know that I can not. I have not gone past 1200 at targets other than large rocks. I ran the my load on shooter, this is what I get.
Alt. 7000'
Mv. 2750
Berger 185 jugerant
1000 yards 27.2 moa, 1645 fps, tof 1.41 sec.
1200 yards 36.7 moa, 1458 fps, tof 1.8 sec.
1500 yards 54.4 moa, 1199 fps, tof 2.48 sec.
There is a lot can go wrong with a flight time of 2.48 sec. Also with my rifle I have enough dial up for 1200 but not 1500 Yards. If the wind is not to bad, I am fairly consistant at 1200. But that goes south with winds over about 10 mph. In my local it is hard to find a day under 10 mph, hard to find a day under 20 mph most times.
Sorry it took so long to respond, I tried the 185 gr Juggernaut Bergers and with a little tweak here and there, I think I found a method to the madness here. Thank you much for the info and the open mind to pass the info to me. I now have a good load made up in the 185's that will be better to shoot. Again, thank you.
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  #10  
Old 09-03-2013, 09:01 AM
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Re: .308 Bullet Weight effects past 1,000 Yds

Quote:
Originally Posted by wyomingblizzard View Post
I know there are shooters out there that can hit, with consistency, at 1500 with thier 308.
If consistantly is every shot for 15 to 20 of them and fired without artificial support. . . .

Not on a 1 MOA diameter target. And rarely with a 2 MOA diameter one.

Nobody's consistantly hit a 1 MOA diameter target at 1000 yards with a .308, either.

With artificial support of the rifle, one might do it at 1500 yards on a 1 MOA diameter target for a couple of shots, but rarely with the first one.
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  #11  
Old 09-05-2013, 09:40 PM
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Join Date: Jan 2012
Location: Houston, Texas
Posts: 888
Re: .308 Bullet Weight effects past 1,000 Yds

In my honest opinion i would agree with the army and say the effective range of the 308 is 800 yds. I mean from a season to season with multiple lots of ammo standpoint. The 308 has won many 1000 yd matches and dispatched many of critters at extended ranges, but simply doesnt have the balls and bc to do it cold bore day in and day out.
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  #12  
Old 09-05-2013, 11:36 PM
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Join Date: Dec 2001
Location: Canyon Ferry, MT
Posts: 263
Re: .308 Bullet Weight effects past 1,000 Yds

I've spent some time exploring the outer limits of 308 Win peformance.

1500 yards will always be a low percentage first-round hit probability on a 1-moa size target, for a 308. I don't believe there is any getting around that. At that distance it's running out of gas even with the best LR loads. Any changes in temp, mv breeze etc is going to make a significant change in POI. I only shoot the 308 that far for the challenge and amusement.

I shoot a moly'd 208 AMax seated to 3.08" oal, over 49.0 gr RL17, in Win brass. This gives 2620 fps from my 22" Rem varmint barrel.

This load is surprisingly accurate and consistent to past 1500 yards, at 4500' elev. Same load shot well to 1500 meters at 2900' elevation.




Probably the best bullet I've played with in the 308 for really going long has been the 215gr Berger. I've only played with a handful of them, but made 2600 fps with a 26" barrel and RL17. G1 BC is in the .690's, anyone can run the calcs on that and see it will be running 1200+ fps out to 1500 yards even at sea-level.

I only pushed to 215 Berger to 1200 yards, at 4500' el, and it was very accurate at that distance, shooting at sub-moa size rocks. It's a bullet I need to play with some more one of these days.

Here's some more info on the 215gr Berger I had posted a while back when I shot the few I had.

215gr Berger Hybrid in the 308Win
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  #13  
Old 09-06-2013, 04:39 AM
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Join Date: Dec 2009
Posts: 881
Re: .308 Bullet Weight effects past 1,000 Yds

Quote:
Originally Posted by MontanaMarine View Post
I've spent some time exploring the outer limits of 308 Win peformance.

1500 yards will always be a low percentage first-round hit probability on a 1-moa size target, for a 308. I don't believe there is any getting around that. At that distance it's running out of gas even with the best LR loads. Any changes in temp, mv breeze etc is going to make a significant change in POI. I only shoot the 308 that far for the challenge and amusement.

I shoot a moly'd 208 AMax seated to 3.08" oal, over 49.0 gr RL17, in Win brass. This gives 2620 fps from my 22" Rem varmint barrel.

This load is surprisingly accurate and consistent to past 1500 yards, at 4500' elev. Same load shot well to 1500 meters at 2900' elevation.




Probably the best bullet I've played with in the 308 for really going long has been the 215gr Berger. I've only played with a handful of them, but made 2600 fps with a 26" barrel and RL17. G1 BC is in the .690's, anyone can run the calcs on that and see it will be running 1200+ fps out to 1500 yards even at sea-level.

I only pushed to 215 Berger to 1200 yards, at 4500' el, and it was very accurate at that distance, shooting at sub-moa size rocks. It's a bullet I need to play with some more one of these days.

Here's some more info on the 215gr Berger I had posted a while back when I shot the few I had.

215gr Berger Hybrid in the 308Win

I have been shooting 185g Hybrid Hunters/RL-17 from my 700VS in .308. Though I have seen some folks shooting the 208 AMAX's with some success, I had never even considered that a 215 Hybrid would stabilize from my 12 twist barrel.

I am absolutely stunned at your results! Good read. Thanks for posting the link.

I have some 215's on backorder for my .300WM. I may have to try them out from my .308. Where I normally shoot, the altitude is around 1800ft. ASL. It will be interesting to see if they fly straight at that altitude.
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  #14  
Old 09-06-2013, 07:56 AM
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Posts: 2,114
Re: .308 Bullet Weight effects past 1,000 Yds

I wonder what the peak pressures are for 200+ grain bullets leaving a .308's 22 inch barrel over 2500 fps.

Having shot several hundred 200-gr HPMK's from 26 inch barrels leaving just under 2500 fps (48 grains of IMR4350 in thin WCC cases weighing only 150 grains) and noting their pressures were high from visible signs and others measuring it with Oehler's system getting about 64,000 PSI in tight bored barrels, I can imagine what such loads might produce.
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