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Double Rifles, Single Shots & Combinations >> Paradox and Bore Guns

Longknife
.333 member

Reged: 17/04/08
Posts: 263
Loc: Illinois

Re: Another ? for Daryl
27/04/08 12:08 AM

Thanks for all the info Daryl. I have a .690 mould and a .715 mould and have been saving 12 ga. hulls for this project. I will go to the local trap range for some "cups". Now about that rifling, I have considered building a bench and cutting it myself, but I am not too far away from Bill Moody, I may see if he will cut it for me. So your suggestions would be 1 in 80 twist .006 depth. (max) and 191 grns FF to get a vel. of around 1600 fps. I am not doubting your word but when I calculated round ball twist useing the Greenhill formula a few years ago I came up with something like 103 for a .690 ball. why do you recommend a faster twist????THANKS, Ed

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Longknife

Post Extras

Entire topic
Subject	Posted by	Posted on
Another ? for Daryl	Longknife	23/04/08 01:28 AM
Re: Another ? for Daryl	Longknife	27/04/08 12:08 AM
Re: Another ? for Daryl	DarylS	27/04/08 02:34 AM
Re: Another ? for Daryl	Longknife	01/05/08 12:23 AM
Re: Another ? for Daryl	DarylS	01/05/08 02:54 AM
Re: Another ? for Daryl	DarylS	23/04/08 03:33 AM

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