Ideal bullet weight for SBR

[david baumgarten]

Hi Ya'll,

I am new to this forum. Thanks for having me.

A new to me SBR came my way. Diablo 7" Upper 1:8 on a Sundevil lower in .223/5.56.

It has a 7" Barrell.

The MV is about 2100.

What grain bullet is going to get me the best stability out to 300 yards?

Anyone know of a calculator for these variables?

Input
Barrel Length
Caliber
Twist
MV

Output:
ideal grain

Thanks,
David

 

[dkhunt14]

Hi Ya'll,

I am new to this thread. Thanks for having me.

A new to me SBR came my way. Diablo 7" Upper 1:8 on a Sundevil lower in .223/5.56.

It has a 7" Barrell. I don't know the actual MV.

What grain bullet is going to get me the best stability out to 300 yards?

Anyone know of a calculator for these variables?

Input
Barrel Length
Caliber
Twist
MV

Output:
ideal grain

Thanks,
David

I think you need the velocity for input into a bullet twist calculator. Matt

 

[david baumgarten]

I think you need the velocity for input into a bullet twist calculator. Matt

Based on a cut down Rem700 at the same 7” length, I am going to put the MV at about 2100 for this SBR.

 

[dkhunt14]

The Berger bullets website has a bullet stability program. You just type in your input and it will tell you how stable it is. Matt

 

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