.308 B.C. 1000 Yards Constant

[Zen Archery]

Current bullet, 168r Berger VLD, is struggling beyond 800 yards. Which kinda stinks when you have a 1200 yard range.
After doing some reading this is a common issue for my barrel length and twist.
It seems like 175-185gr is the sweet spot for those poking out between 500-1200 yards.
My question is when looking for a new "target" bullet (non-hunting) should I strive for the highest B.C. why or why not? The 3 Berger Bullets I am looking at are:

5.49 @ 1.378"
5.60 @ 1.353"
5.69 @ 1.435"

All are 185gr and share the same .279 S.D. I am favoring the second bullet just because of bullet length and option to load a little more powder when developing the load. What else would you look for in a new bullet load?

I have a 24" Krieger Bull Barrel with 1:10 twist.

(No, getting a 6.5 isn't an option this year. Finances are going into a thermal for those 4 legged flea bags called HOGS!!!)

 

[gohring3006]

Current bullet, 168r Berger VLD, is struggling beyond 800 yards. Which kinda stinks when you have a 1200 yard range.
After doing some reading this is a common issue for my barrel length and twist.
It seems like 175-185gr is the sweet spot for those poking out between 500-1200 yards.
My question is when looking for a new "target" bullet (non-hunting) should I strive for the highest B.C. why or why not? The 3 Berger Bullets I am looking at are:

5.49 @ 1.378"
5.60 @ 1.353"
5.69 @ 1.435"

All are 185gr and share the same .279 S.D. I am favoring the second bullet just because of bullet length and option to load a little more powder when developing the load. What else would you look for in a new bullet load?

I have a 24" Krieger Bull Barrel with 1:10 twist.

(No, getting a 6.5 isn't an option this year. Finances are going into a thermal for those 4 legged flea bags called HOGS!!!)

I would look for a bullet above .600 BC and strive for 2600 fps..
The 208 ELD would be a good choice if.... You could get 2500+ fps.. Don't know if you could do that or not. I don't load .308, I do load 30-06 and I chose the 215 hybrid for it. Theoretically it will 1200 but I have only had it to 1000...

 

[Darkker]

The thing to note is whether or not the bullet is stable at crossing the trans-sonic range. Don't know Berger's specifically, but the "regular" 168's have a CG/CP issue, and a tail angle that ensures they don't cross.

 

[barefooter56]

Zen Archery,
Are you loading your rounds to magazine length or setting them out twords the lands? Our 168 VLD should not have any issues getting out that far. But , if you want to "get out there" then yes. The more BC the better. Your 1-10 twist rate will handle any of out bullets up to and including the 210 VLD TARGET bullet. For 1000-1200 yards shooters have been having good success with our 185 Juggernauts, and 200 grain HYBRID TARGET bullets in F-TR competitions out to 1000 yards and they shoot at a half MOA target. If you are running out of velocity and dont want to set the bullet out to the lands but use the magazine box. Then try the 185 Juggernauts or the 175 OTM bullets. If you have any more questions please feel free to contact us at [email protected]

 

[barefooter56]

Darkker,
Its the Sierra 168 Matchking that has the 100 yard issue. Great 300 meter target bullet( which it was designed for) but does not do well past 7-800 yards.

 

[Zen Archery]

The thing to note is whether or not the bullet is stable at crossing the trans-sonic range. Don't know Berger's specifically, but the "regular" 168's have a CG/CP issue, and a tail angle that ensures they don't cross.

my load specs, altitude, that day's exterior ballistics, bullet transonic range 1100 yards. It is able to hit 36" target @ 1000 yards but with no consistency.

 

[Zen Archery]

Zen Archery,
Are you loading your rounds to magazine length or setting them out twords the lands? Our 168 VLD should not have any issues getting out that far. But , if you want to "get out there" then yes. The more BC the better. Your 1-10 twist rate will handle any of out bullets up to and including the 210 VLD TARGET bullet. For 1000-1200 yards shooters have been having good success with our 185 Juggernauts, and 200 grain HYBRID TARGET bullets in F-TR competitions out to 1000 yards and they shoot at a half MOA target. If you are running out of velocity and dont want to set the bullet out to the lands but use the magazine box. Then try the 185 Juggernauts or the 175 OTM bullets. If you have any more questions please feel free to contact us at [email protected]

I actually sent you guys a private email and you replied in 2 days with a wealth of information, resources to read and some starting load info. I don't need to load to mag length. My current 168 VLD's are .012 off lands/free boar @ 2.194

I split the middle and went with the 190 VLD's via what I read it should be a sweet spot between b.c., weight, and speed my system can/should (hopefully) be able to produce.

 

[barefooter56]

Ok. Give it a shot ( sorry and let us know what happens. If you have any questions give us a shout.
Good shooting!