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6mm loads

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Old 04-17-2005, 02:41 AM
Junior Member
Join Date: Apr 2005
Location: Idaho and Utah
Posts: 20
6mm loads

I'm just getting started in the long range thing and need to switch bullets in my 6mm. It's a 700 VLS with a break and I have been shooting 55 NBT's at 4200 fps, since I rarely shot past 500 yards. I would like to start trying some longer range stuff and was thinking of trying 105 grain A max or the 87 grain V max. Twist is 1:9 so I'm a little concerned about the 105's. I can also usually get about 250 fps more out of a 85 grainish bullet than a 100 grainish (highly technical term [img]/ubbthreads/images/graemlins/grin.gif[/img])so was wondering if the 87 would be a good way to go despite the lower BC.

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Old 04-17-2005, 10:21 AM
Silver Member
Join Date: Jan 2005
Posts: 186
Re: 6mm loads

Hi There! I shot out many bbls on the exact same rifle that you are shooting. I lived out West at the time and shot p. dogs and Rock chucks with my 6mm's. I too rarely shot past 500 with most of the long range shots being in the 350 yard range.

I shot the 60g Sierra on coyotes and my 60g hp on p. dogs and crows after trying a flock of different bullets of heavier weight. I later on found the Sierra 80g Single shot pistol bullet with a very heavy load of IMR 4064 to be very fast and accurate and blew up very well on everything. Sierra now makes a 80g Single shot blitz Boat tail that is a very accurate bullet and highly explosive, but gives great holes in coyotes also.

I found that the bullets in the 70g range to give the highest velocity with less copper fouling, and the 85g bullet and up really coppered my bbls up fast while making cleaning a real chore. If you wanted to go to a heavier bullet, then my first choice would be the Sierra 80g Blitz BT.

I encourage you to spend some time on a ballistic's program to educate yourself on bullet drop and wind drift...it is a real eye opener to say the least. Do not be deceived, 200 fps makes up for a lot of B.C. on a bullet, and time of flight has a lot to do with wind drift.

Also, for varmint hunting where rapid shooting is taking place, copper fouling is a killer of accuracy. The slower bullets with the longer bearing surface will copper up a bbl quicker than a faster light bullet with less bearing surface. You will have to experiment, because there is a balance between copper fouling and accuracy taking into consideration the number of rounds that you will like to fire in a string.

As a general rule of thumb, I found the custom bullets made on a J-4 jacket and Sierra bullets copper foul less than Hornady or Nosler bullets.

The Hornady 87g with poly tip is reported to be a great bullet, but the copper fouling with these long bearing surface bullets will be a bear, no doubt.

By the way, when you start running the numbers that you are shooting on the 55's, it will amaze you how well the 55's at 4000+ do on wind drift and bullet drop out to 500!

What kind of shooting are you doing?
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Old 04-17-2005, 12:36 PM
Junior Member
Join Date: Apr 2005
Location: Idaho and Utah
Posts: 20
Re: 6mm loads

Thanks Kieth,

I do have about 1200 75 grain V max's that I bought on a clearance a few years ago, maybe I'll try them first. I need to get a ballistics program that I can compare things out past 600. I have typically just used the drop charts from reloading manuals. Most of my varmint shooting is within 500 yards and for that the 55 grain NBT has been tough to beat. However I do see coyotes way out there sometimes and rarely do I connect with them. I'd like to increase that average.

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Old 04-17-2005, 12:42 PM
Gold Member
Join Date: Nov 2004
Posts: 878
Re: 6mm loads

I shot a coyote with a 75vmax the other day....
the work real good [img]/ubbthreads/images/graemlins/grin.gif[/img]
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Old 04-18-2005, 05:55 AM
Silver Member
Join Date: Apr 2004
Location: Australia
Posts: 250
Re: 6mm loads

Burleyboy ,
Here is a free web based external ballistics calculator .
I haven't been able to get the 87 V Max to group really well out of my .243 AI with 9 inch twist (0.75 for 5 shots). The 75 V Max gave me best accuracy at around 3500 FPS (under 0.5 inches) .
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Old 04-18-2005, 06:23 PM
Silver Member
Join Date: Aug 2004
Location: utah
Posts: 302
Re: 6mm loads

The 105-107gr bullets wont work in a 1-9" twist barrel, the highest B.C.bullet you can shoot is the Berger 95gr VLD but they do tend to be finiky, the Lapua 90gr Scenar is an awesome bullet that I have shot to 1000yds. with.
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Old 04-18-2005, 09:19 PM
Junior Member
Join Date: Apr 2005
Location: Idaho and Utah
Posts: 20
Re: 6mm loads

Thanks for all the comments everyone. I may have to try the 90gr lapua, I've also been wanting to try some of the lapua 139's in my 260. I'll have to order some of each.
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