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Double Rifles, Single Shots & Combinations >> Building Double Rifles & Gunsmithing

Otto
.300 member

Reged: 15/09/05
Posts: 111
Loc: Arizona, USA

Re: On assymetrical crowns and movement of groups...
22/09/05 07:48 AM

Tinker, Here's how I would proceed with a rifle previously regulated with an unknown load. Use standard loading tricks to bring regulation as close as possible. A chronograph is very handy to stay in the ball park regarding pressures and velocities. When you have a load that groups well but is 6 MOA side to side, up or down, or crossing, the crown can be used to move the groups as necessary. If you have a mill available, you can fix an over zealous grind on the crown by simply milling off a bit of the muzzles to get rid of all crown and start over. Better if you go slowly and shoot a lot. Trial and error still has it's place!

Otto

Post Extras

Entire topic
Subject	Posted by	Posted on
Muzzle crowns...	tinker	20/09/05 07:08 AM
Re: Muzzle crowns...	Otto	20/09/05 09:02 PM
On assymetrical crowns and movement of groups...	tinker	20/09/05 11:53 PM
Re: On assymetrical crowns and movement of groups...	Otto	21/09/05 09:40 PM
Re: On assymetrical crowns and movement of groups...	tinker	22/09/05 12:53 AM
Re: On assymetrical crowns and movement of groups...	Otto	22/09/05 07:48 AM
Re: On assymetrical crowns and movement of groups...	500Nitro	21/09/05 10:27 PM
Re: On assymetrical crowns and movement of groups...	Marrakai	21/09/05 11:37 PM
Re: Muzzle crowns...	Raff	20/09/05 07:39 AM
Re: Muzzle crowns...	tinker	20/09/05 11:56 AM
Re: Muzzle crowns...	JPK	20/09/05 01:22 PM
Re: Muzzle crowns...	500Nitro	20/09/05 07:14 AM

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