After Reading Cayugad's post

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12-26-2010, 04:36 AM

bronko22000

Boone & Crockett

Thread Starter

Join Date: Jan 2004

Location: Eastern PA

Posts: 12,762

After Reading Cayugad's post

It got me thinking after reading Cayugad's post on a White Christmas. I am getting a barrel reamed and having a 1:28 twist put in it. I am thinking that maybe a 1:24 twist might be better for shooting the 300 gr SWs and XTPs out of.
Give me you thoughts.

12-26-2010, 05:04 AM

Semisane

Boone & Crockett

Join Date: Apr 2007

Location: River Ridge, LA (Suburb of New Orleans)

Posts: 10,918

I think I would go with the 1:24. It would give you a heavier bullet option. What about depth of rifling? Do you have an option there? What is the depth on the Whites?

12-26-2010, 05:44 AM

lemoyne

Giant Nontypical

Join Date: Nov 2005

Posts: 6,585

The ideal length of a bullet at 1800 fps is:
1 in 28 =1.05 inch long
1 in 24 =1.25 inch. long
Thought this might help.
Lee
PS: the weight has no effect on stabilization, but the caliber does this is for 45.
caliber bullets, the sabot has no effect on stabilization either.
Hope this helps.

12-26-2010, 06:01 AM

Underclocked

Nontypical Buck

Join Date: Feb 2003

Posts: 3,092

The Whites have groove depth of about .003 to .0035".

Lee, I wouldn't get too carried away with that Greenhill stuff - seems to be a pretty poor indicator of bullet performance in my rifles. At best, it's a SWAG anyway.

12-26-2010, 06:54 AM

cayugad

Dominant Buck

Join Date: Feb 2003

Location: Wisconsin

Posts: 21,193

Underclocked... do you have any idea of the groove depth in say an Accura or a Omega? I have always been curious in the correlation of groove depth to conical shooting ability.