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Rifles, Reloading, Optics, Equipment
Gunsmithing
New problem, need expertise!
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<blockquote data-quote="elkaholic" data-source="post: 327263" data-attributes="member: 13833"><p>I've had some experience with the ackley and similar cases in fire <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" />forming and I can just about guarantee you that it is caused by a headspace problem. (NOT as a result of the gunsmith) but the fire forming process itself. If you are going to use 25-06 brass and fire form with a bullet seated, you will have to jam it into the lands to keep the case from moving during the firing. This may not work either? The best method would be to use .270 cases and neck them to 25 leaving a (false shoulder) far enough ahead so that the bolt closes stiffly on the case. Don't use a bullet but rather load a small charge of shotgun powder (I use 11 grs of red dot) fill the rest of the case with cream of wheat and top off with a paper plug to hold everything together. You will have to trim the case afterward as the .270 is .046" longer. This will be a benefit anyway as the cases will shrink approx. .015" when forming. i.e. fire forming a 25-06 to form an ackley will cause you to end up with a very short neck (under spec) If they are not properly fire formed, you will separate the cases right ahead of the web after a couple of firings! Another sure fire method is to call Lonnie Hummel at Hornady and have him build you a hydraulic forming die. Hope this helps....Rich</p></blockquote><p></p>
[QUOTE="elkaholic, post: 327263, member: 13833"] I've had some experience with the ackley and similar cases in fire :Dforming and I can just about guarantee you that it is caused by a headspace problem. (NOT as a result of the gunsmith) but the fire forming process itself. If you are going to use 25-06 brass and fire form with a bullet seated, you will have to jam it into the lands to keep the case from moving during the firing. This may not work either? The best method would be to use .270 cases and neck them to 25 leaving a (false shoulder) far enough ahead so that the bolt closes stiffly on the case. Don't use a bullet but rather load a small charge of shotgun powder (I use 11 grs of red dot) fill the rest of the case with cream of wheat and top off with a paper plug to hold everything together. You will have to trim the case afterward as the .270 is .046" longer. This will be a benefit anyway as the cases will shrink approx. .015" when forming. i.e. fire forming a 25-06 to form an ackley will cause you to end up with a very short neck (under spec) If they are not properly fire formed, you will separate the cases right ahead of the web after a couple of firings! Another sure fire method is to call Lonnie Hummel at Hornady and have him build you a hydraulic forming die. Hope this helps....Rich [/QUOTE]
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