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How fast can I shoot a .223 Nosler 40g Varmint

 
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Old 08-24-2011, 09:58 PM
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How fast can I shoot a .223 Nosler 40g Varmint

Picked up a box of Nosler 40 gr ballistic tip varmints to load for my nephews 22-250 with a 1:14 twist. But being a tinkerer I wondered about loading them for my ABolt in 223WSSM it is a 1:10 twist.

Per Nosler 45grs of Varget should push it around 4260 that gives me a rotation of 306720 rpm (4260x720/10) if my math is right. Can this bullet stand up to it? Anyone else tried it and want to save me the frustration?
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Old 08-24-2011, 10:21 PM
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Re: How fast can I shoot a .223 Nosler 40g Varmint

Not 100% sure, but I've run them up close to 4350fps in a 12 twist with no issues except accuracy, they start opening up group wise over 4250. Noslers are tough but that would be way beyond over stabilization.
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Old 08-25-2011, 12:14 AM
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Re: How fast can I shoot a .223 Nosler 40g Varmint

I once ran a couple at 4500 measured by my 35P chronograph. Didn't have any problems with them. It was a 1/9 barrel.
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Old 08-25-2011, 03:58 PM
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Re: How fast can I shoot a .223 Nosler 40g Varmint

Quote:
Originally Posted by backwoods83 View Post
Noslers are tough but that would be way beyond over stabilization.
I asked a question some years ago about rate of rifling twist vs. rpm's concerning stabilization. The answer I received by those in the know about external ballistics was that rpm is not the key to stabilization because even though the rpm is higher with higher velocity, the rotations per a given distance of bullet flight is not. The rate of twist of the rifling of the barrel will determine the stabilization of the bullet for the most part.
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Old 08-25-2011, 04:19 PM
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Re: How fast can I shoot a .223 Nosler 40g Varmint

Well since I have no idea what I'm talking about and over stabilization "doesn't cause worse spin drift" then load a 168grn berger vld in a 10 twist 300 wby at about 3400fps and see what happens with that! Because I'm just another jacka$$ that has no idea what he's talking about.
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Old 08-25-2011, 05:53 PM
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Re: How fast can I shoot a .223 Nosler 40g Varmint

I ran 27.0 grains of varget behind this bullet in a DPMS Prairie Panther with a 1/8 twist and it was amazing. Groups were in the .2's and .3's and they just misted anything they hit. Load them up and send them! If worse comes to worse you'll just have to slow your loads down a little bit.
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Old 08-26-2011, 06:26 PM
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Re: How fast can I shoot a .223 Nosler 40g Varmint

The Nosler bullet is .224" diameter. 223 is a cartridge just like 22-50 is a cartridge, not the bullet dimension. The bullet was designed for varminting where it is expected it will hold up to higher velocities that intorduce high rotational stress. The bullet holds together well and I have seen where some guys have used it in an -06 case pushing it to extreme velocities. I would be surprised if you have problems in a 223 WSSM.
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