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1 in 9 or 1 in 10 twist?

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I need the help of you 6x45 shooters. I have decided that I need a 6x45 BHW barrel to build an upper for my AR to be a companion for my .243 and 6mm Remington bolt guns.

 

I plan on getting a 20" standard profile barrel and shooting 80-90 grain bullets for hunting deer and pigs.

 

My question is which twist rate should I choose? 1 in 9 or 1 in 10?

 

Any opinions would be appreciated.

 

-Bob

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I need the help of you 6x45 shooters. I have decided that I need a 6x45 BHW barrel to build an upper for my AR to be a companion for my .243 and 6mm Remington bolt guns.

 

I plan on getting a 20" standard profile barrel and shooting 80-90 grain bullets for hunting deer and pigs.

 

My question is which twist rate should I choose? 1 in 9 or 1 in 10?

 

Any opinions would be appreciated.

 

-Bob

I would go with the 1 in 9. It will stabilize the heavier bullets you may want to try later. I am talking up to 100 grains. It also works well on the light weight bullets. It's a win win.

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Thanks for the reply. I will order the 1 in 9.

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I just ordered my 20" barrel. I am going to mate it to an American Spirit Arms side-charging upper. I see a lot of dead pigs in this barrel's future.

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I just ordered my 20" barrel. I am going to mate it to an American Spirit Arms side-charging upper. I see a lot of dead pigs in this barrel's future.

 

Post up pics as it goes.

 

Greg

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YES!!! My barrel should arrive by Tuesday.

 

I have the upper receiver, bolt, and the piston system. All I need is the hand guard and the flash hider crush washer and I am ready to get her assembled.

 

I also have 150 cases sized, trimmed, and primed, several pounds of XBR 8208 and several hundred 85 and 90 gr Sierras and Speers. Good times are coming.

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Thanks for the info. I'm getting ready to order my barrel and it has been really informative.

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