Long Range Hunting Online Magazine

Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Gunsmithing


280 to 280 AI ???

LinkBack Thread Tools Display Modes
Unread 02-24-2010, 05:46 PM
Silver Member
Join Date: Dec 2005
Location: Los Anchorage Alaska
Posts: 238
280 to 280 AI ???

Does the barrel have to be set back to rechamber 280 to 280AI??

Reply With Quote

Unread 02-24-2010, 06:36 PM
Silver Member
Join Date: Nov 2009
Posts: 137
Re: 280 to 280 AI ???

Generally speaking, Yes.. My understanding is you want your Ackley Chamber to be .002 shorter on headspace than the parent case that it is derived from. Reason being, you will get good, tight fitting cases after you fire-form. Also, if you dont have a tight, crush fit on the original brass, and it jumps forward during fire-forming, you will like start having a few unexplained missfires...

But, if you plan on buying factory .280 Ackley brass, and not fire-forming, then it wont be nescessary.

.002 is no big deal for a good smith, unless you have engraving or a muzzle brake to keep in time. Then he may want to set it back one complete revolution of the thread shank and go from there...
Reply With Quote


Thread Tools
Display Modes

All times are GMT -5. The time now is 02:59 PM.

Powered by vBulletin ©2000 - 2015, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2015 Long Range Hunting, LLC