.458 twist rate ??

[TimS]

I am wanting a 458 caliber rifle to shoot 400+ grain bullets subsonic. I've noticed that some bullet manufacturers (Lehigh Defense) recommend a 1 in 10 for their 465 grain bullets. My Shiloh Sharps would shoot 540 grain bullets great with (I think) a 1 in 18 twist.

Is this Bullet composition, bearing surface or what am I missing?

Thanks

 

[akajun]

I have a 1/16 45/70that shoot 500 gr Lee cast bullets nicely at subsonic velocities.

 

[Kurz]

I am wanting a 458 caliber rifle to shoot 400+ grain bullets subsonic.

Remember that L-D is making solids not cup and core bullets so they are longer per caliber (diameter) than the standard lead and copper bullets of equal weight. Shorter bullets require less twist to stabilize than the longer bullets of the same weight.

Subsonic for what use? Hunting? Fun shoots? Match/Targets?

 

[TimS]

Remember that L-D is making solids not cup and core bullets so they are longer per caliber (diameter) than the standard lead and copper bullets of equal weight. Shorter bullets require less twist to stabilize than the longer bullets of the same weight.

Subsonic for what use? Hunting? Fun shoots? Match/Targets?

Thanks, that's what I thought.

Thinking about a 45-70 Whisper for fun and hunting.

 

[matthias]

My socom has a 1-14 twist. Have shot up to 575 subsonic no issues