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Re: When a shotgun is marked "Not for Ball" WBLDon #538757 02/22/19 05:16 PM
Joined: Jan 2006 Posts: 9,763 Likes: 462 AZ but dreaming of KS Drew Hause Sidelock
Drew Hause Sidelock Joined: Jan 2006 Posts: 9,763 Likes: 462 AZ but dreaming of KS	Miller is correct; .2 mm = 0.00787" I corrected my post. https://sites.google.com/a/damascusknowledge.com/www/home

Re: When a shotgun is marked "Not for Ball" Drew Hause #538758 02/22/19 05:16 PM
Joined: Jan 2006 Posts: 15,462 Likes: 89 The Great State of Tennessee HomelessjOe Sidelock
HomelessjOe Sidelock Joined: Jan 2006 Posts: 15,462 Likes: 89 The Great State of Tennessee	I guess you just got caught up in your copy and pasting....

Re: When a shotgun is marked "Not for Ball" 2-piper #538780 02/22/19 06:59 PM
Joined: Jan 2002 Posts: 11,573 Likes: 165 Iowa L. Brown Sidelock
L. Brown Sidelock Joined: Jan 2002 Posts: 11,573 Likes: 165 Iowa	Originally Posted By: 2-piper The misunderstanding of this was one of the major reasons for changing the marks from "Not For Ball" to "Choke" As I recall most proof laws required one of these marks, depending upon time frame, on any gun having 0.2mm (0.008") of choke or more. It was I believe optional on a gun with any lesser amount of choke. A cylindder bore was of course unmarked. That is correct under British rules of proof. Guns with a minimum of .008" constriction had to be marked Choke. But the person submitting the gun for proof could request that it be marked Choke if it had as little as .004" constriction. Last edited by L. Brown; 02/22/19 07:00 PM.

Re: When a shotgun is marked "Not for Ball" ellenbr #538806 02/22/19 11:19 PM
Joined: Aug 2007 Posts: 12,083 Likes: 380 North Alabama ellenbr Sidelock
ellenbr Sidelock Joined: Aug 2007 Posts: 12,083 Likes: 380 North Alabama	Originally Posted By: ellenbr Originally Posted By: 2-piper .....gun having 0.2mm (0.008") of choke or more...... Miller: That would be 0.2cm or 2 mm. Miller that is 0.2mm..... Cheers, Raimey rse

Re: When a shotgun is marked "Not for Ball" WBLDon #538812 02/22/19 11:55 PM
Joined: Dec 2001 Posts: 12,743 Lynchburg TN 2-piper Sidelock
2-piper Sidelock Joined: Dec 2001 Posts: 12,743 Lynchburg TN	Yes, 1 mm = 0.3937" or under the "Old" standard a full choke. I normally use the reciprocal of 1" = 254mm so 0.2 /25.4 = 0.00787 or rounded to three decimal places 0.008". Miller/TN I Didn't Say Everything I Said, Yogi Berra

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