210 gr Berger and 300 win barrel twist

Squatch

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Christmas present from my wife. A new Proof Elevation MTR in 300 win mag. I would like to load and shoot the berger 210's if the 1-10 twist will stabilize them.

Also looking for any load advice for these bullets in the win mag?
I load and shoot the 140's in my 6.5x284 and love them.

TIA
 

Jud96

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1-10 Twist is more than enough to stabilize the 210 VLDs. I do suggest looking into the 200.20x and 215 Berger Hybrids. Both of those are Hybrid ogive bullets and are less picky to get shooting. I would run ADG brass and for powder H1000, RL26, IMR 7977, and Retumbo will all be great options.
 

Squatch

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1:10 should stabilize that bullet. If you are at sea level it may be a little iffy. I load Burger 215's and shoot them with a 1:10 twist at 4000ft elevation. I would look at H1000 with Federal 215M primers.
Great info. I live in ND about 900ft above sea level and regularly take trips put west for elk every other year.
 

pburton

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Great info. I live in ND about 900ft above sea level and regularly take trips put west for elk every other year.

You should be OK, I would give it a try. But, if you do, try to shoot at 300+ yards to see if you are getting good stabilization. 100 yards will not give you a good indication of what it will do. Good luck!
 

dfanonymous

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You should be OK, I would give it a try. But, if you do, try to shoot at 300+ yards to see if you are getting good stabilization. 100 yards will not give you a good indication of what it will do. Good luck!
How do tell if a bullet it stable at 300y vs 100? I agree with the plus but even if you used a 1:11 twist the bullet will be stable. You won’t run into a measurable problem until you reach you’re calculated transonic zone and the results will be apparent at sub sonic.
Berger has a stability calculator on their website. A 1:10 will stabilize a 210 VLD just fine.
 

Mach 1

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I agree with previous posts. I’d look into the 215 bergers. The 210s are ok but the 215s are good performers on game and are ballisticly superior.
 

pburton

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How do tell if a bullet it stable at 300y vs 100? I agree with the plus but even if you used a 1:11 twist the bullet will be stable. You won’t run into a measurable problem until you reach you’re calculated transonic zone and the results will be apparent at sub sonic.
Berger has a stability calculator on their website. A 1:10 will stabilize a 210 VLD just fine.

I based my response on my experience. For me, any bullet will shoot pretty good at 100 yards. But, bullets that are not correctly stabilized will start showing this at 300+ yards. You will get an opened up group that will not change with powder charge or seating depth. Just my experience.
 

WildRose

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I based my response on my experience. For me, any bullet will shoot pretty good at 100 yards. But, bullets that are not correctly stabilized will start showing this at 300+ yards. You will get an opened up group that will not change with powder charge or seating depth. Just my experience.
This is correct. A little wobble won't show up much at 100 but gets exponentially worse the further out you go.

I've seen bullets I thought were stable at 100yds be totally off paper at 300 and dangerously off target at 500.

If they are keyholing at 100 though it's not going to get better as you push out.

Occasionally a marginally stable bullet though will seem to stabilize beyond a hundred and shoot better groups further out.
 

Mram10us

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1-10 has worked for me in 300wsm, 300 rum and 300wm at 3000 ft with 210-230s. I wish I could blame my fliers on stability :)
 

dfanonymous

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This is correct. A little wobble won't show up much at 100 but gets exponentially worse the further out you go.

I've seen bullets I thought were stable at 100yds be totally off paper at 300 and dangerously off target at 500.

If they are keyholing at 100 though it's not going to get better as you push out.

Occasionally a marginally stable bullet though will seem to stabilize beyond a hundred and shoot better groups further out.

There’s a reason why some BR shooters use marginally stable. Technically speaking, over twisting, or completely under twisting is the only thing that creates a loss in accuracy as accuracy is concerned. As I stated before, the only reason to slightly over twist it is to maintain a relatively long bullets stability through transonic. Bullet length relation as it relates to monos may not over twisting, if it is proportion to stability. It’s not anything to over think, a 210 VLD at a win mags velocity has a sg of like 1.8 in standard condition. It’s stable in cold, hot and average temps in low to high elevation using a 10 twist, and enough to get you through transonic, and maintain BC being that marginal stability can cause excess drag at longer distances.
 

JIsbell40

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I shoot 210s in a 300wby 800 ft elevation with a 1:11 twist. Excellent groups out to 1200 yards. 1200-1600 it starts to open up a bit but still around MOA
 

GonzoK34

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Alpine, Calif.
I based my response on my experience. For me, any bullet will shoot pretty good at 100 yards. But, bullets that are not correctly stabilized will start showing this at 300+ yards. You will get an opened up group that will not change with powder charge or seating depth. Just my experience.
As a Marine Corps trained team shooter my experience validates the conclusion and advice concerning bullet stability at and beyond 300 yds. Bullets tend to yaw slightly after exiting the muzzle due to the pressure as it drives the bullet out of the barrel. In my experience if your into shooting long range at game a simple test at long range will save your grief when in the field and wounding an animal due to not validating your rifles true accuracy at the distances you intend to shoot at.
SEMPER FIDELIS
 

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