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Looking for some advice on powder for a 308 rifle 29" Bartlen barrel 1-10 twist, using Berger 185 Juggernauts, and Berger 200.20x,for 1000 yards, also what kind of velocity I should be looking for my first choice was RS52, but can't seem to find any, and help would be appreciated 

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1 more for Vihtavuori 150 around the 44.5 mark for the 185 juggernaut speed should be high 2600s . 45 grain was a crunch at 2.9 coal for AI mags 

cheers

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Download and learn to use Gordons Reloading Tool (GRT).
I am not an F Class shooter but would assume that you need the maximum velocity, burning 100% of the powder whilst maintaining minimum harmonic disturbance of the barrel/muzzel.

Consistency is key, if you can repeatedly throw the same wieght, high BC, bullet @ XXXXfps with POA adjustment you will repeatedly hit the target in the same place.
It all sound easy .....  but it isn't.
It's also remarkably expensive to achieve.

You need:
A good and accurate set of weigh scales.
A precision measuring caliper.
Brass cases with the same internal volume.
Bullets that weigh the same.
A rigid, consistent press.

I don't shoot above 300M so +/-20fps is about my limit and I find that difficult to achieve (not impossible).
+/-50mm @ 200M is fine for the targets/distances I shoot at.

https://www.recoilweb.com/chasing-muzzle-velocity-standard-deviation-and-extreme-spread-for-precision-rifle-shooting-152257.html

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2 hours ago, miki said:

Download and learn to use Gordons Reloading Tool (GRT).
I am not an F Class shooter but would assume that you need the maximum velocity, burning 100% of the powder whilst maintaining minimum harmonic disturbance of the barrel/muzzel.

Consistency is key, if you can repeatedly throw the same wieght, high BC, bullet @ XXXXfps with POA adjustment you will repeatedly hit the target in the same place.
It all sound easy .....  but it isn't.
It's also remarkably expensive to achieve.

You need:
A good and accurate set of weigh scales.
A precision measuring caliper.
Brass cases with the same internal volume.
Bullets that weigh the same.
A rigid, consistent press.

I don't shoot above 300M so +/-20fps is about my limit and I find that difficult to achieve (not impossible).
+/-50mm @ 200M is fine for the targets/distances I shoot at.

https://www.recoilweb.com/chasing-muzzle-velocity-standard-deviation-and-extreme-spread-for-precision-rifle-shooting-152257.html

±50mm ?  at 200m.  OK, that's approx a 2moa group.  Do you mean that ?

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24 minutes ago, Popsbengo said:

±50mm ?  at 200m.  OK, that's approx a 2moa group.  Do you mean that ?

I meant 1MOA (25mm @ 100 and 50mm @ 200M) not +/- 50mm, sorry, my mistake.
I tend to wobble more than that anyway although resting on front and rear bags I can repeatedly hit a 4" gong at 200M, off sticks I need to be much more careful/attentive to get 3 of 5, or closer ....

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