Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Hunting
The Basics, Starting Out
280 AI : Any Down Side To Fire Forming With All Copper Bullets?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Hugnot" data-source="post: 2478224" data-attributes="member: 115658"><p>Bullets & powder are expensive. Fireform with cream of wheat (COW) method. Use starting loads of 10% case capacity of mid range burning rate pistol powder, like case capacity 70 grains try a starting load of 7 grains of pistol powder & work up. It will take approximately 20,000 psi to fire form a case, so nice sharp well defined shoulders are formed. Be sure to get a good crush fit. Any kind of primer will work like large pistol for large rifle primed cases. Fireforming loads with bullets will never equal ballistic performance of the final product. Not going to spend $40-$50 for a box of bullets used for fire forming. An exception might be firforming (FF) .223 AI brass using cheapy bullets at under $0.15 each & with minor gain in case capcity. Barrel life is another consideration. Taking a primed case (1) charge powder, (2) wad toilet paper, (3) COW to base neck, (4) wad toilet paper. Sweep out chamber after each shot; I use bronze brush with paper towel wrap. Be sure all junk is removed from case before loading.</p><p></p><p>Some skip the COW & TP and just charge with pistol powder & point barrel straight up. (Boom, but not shooting at birds)</p><p></p><p>Be careful - pistol powder is real frisky & can generate enough pressure to destroy stuff. </p><p></p><p>I FF as part of process to make 6mm AI from 6mm Rem, 7X57 & .280 cases from .270 Win.</p></blockquote><p></p>
[QUOTE="Hugnot, post: 2478224, member: 115658"] Bullets & powder are expensive. Fireform with cream of wheat (COW) method. Use starting loads of 10% case capacity of mid range burning rate pistol powder, like case capacity 70 grains try a starting load of 7 grains of pistol powder & work up. It will take approximately 20,000 psi to fire form a case, so nice sharp well defined shoulders are formed. Be sure to get a good crush fit. Any kind of primer will work like large pistol for large rifle primed cases. Fireforming loads with bullets will never equal ballistic performance of the final product. Not going to spend $40-$50 for a box of bullets used for fire forming. An exception might be firforming (FF) .223 AI brass using cheapy bullets at under $0.15 each & with minor gain in case capcity. Barrel life is another consideration. Taking a primed case (1) charge powder, (2) wad toilet paper, (3) COW to base neck, (4) wad toilet paper. Sweep out chamber after each shot; I use bronze brush with paper towel wrap. Be sure all junk is removed from case before loading. Some skip the COW & TP and just charge with pistol powder & point barrel straight up. (Boom, but not shooting at birds) Be careful - pistol powder is real frisky & can generate enough pressure to destroy stuff. I FF as part of process to make 6mm AI from 6mm Rem, 7X57 & .280 cases from .270 Win. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Hunting
The Basics, Starting Out
280 AI : Any Down Side To Fire Forming With All Copper Bullets?
Top