Fireform barrel idea
- Thread starter Mram10
- Start date
BillBrawand
New member
Try this one
I use enough powder and play dough for bullet and fire out back door or up in the airTO FIRE FORM
I use enough powder and play dough for bullet and fire out back door or up in the airTO FIRE FORM
Here's what I did to fireform 7 SAUM to 6.5 Sherman Short.
I took an old barrel and, crudely, as seen, duplicated a 12 gauge shell. I then ran the reamer in that 'blank'. I had to play around with headspace and the rim of the 'blank' to get it to close properly. But, once done, it fits in my 12 gauge Partner single shot. I then used COW and Titewad to fireform. It saved all that crap getting into my rifle barrel and action.
No matter how I've FF'd with COW I have to inspect every case with a borescope. There are always a few that have caked COW inside the shoulder.
I've toyed with the idea of two pieces with fine threads so you could adjust headspace in any shotgun.
I took an old barrel and, crudely, as seen, duplicated a 12 gauge shell. I then ran the reamer in that 'blank'. I had to play around with headspace and the rim of the 'blank' to get it to close properly. But, once done, it fits in my 12 gauge Partner single shot. I then used COW and Titewad to fireform. It saved all that crap getting into my rifle barrel and action.
No matter how I've FF'd with COW I have to inspect every case with a borescope. There are always a few that have caked COW inside the shoulder.
I've toyed with the idea of two pieces with fine threads so you could adjust headspace in any shotgun.
Attachments
LOL!!! friggin' GENIUS idea'r Boss!!
I make (made) my adjustable fireform chambers on a TAC338, a 110 bigshank and a Rem 722 but this is absolutimally out-of-the-box and will become my new go-to adjusta-chamber as long as my break-open shottyguns can withstand the pressure....I'm kinda' freaky about absolute uniformity
BTW COW SUX!! I Quit Thee COW Many Yrs Ago, napkin or nothing at all......
nope, well kinda, a TINY massless wad rolled in my fingers... pencil eraser would be huge....only to keep powder from popping out
Last edited:
Bill, I like the play dough idea. Never thought of that.
Now that’s interesting. I was just going to thread it onto a spare action
I've formed a couple hundred cases with it. It's easier than dealing with a rifle bolt and simply less to deal with. There's also less chance of an obstruction in the barrel compared to a rifle. I have a friend of a friend who lost an eye fireforming with a rifle when gasses hit him in the face.
The only 'issue' I had was the ejectors pop the whole thing out each time. I figured if I were doing a lot at one time I'd disable the ejector. The other 'issue' is the case getting stuck in the blank. I just used a flathead screwdriver to pop it out like on a Wilson hand die.
I like the COW because you don't have to point the gun up to keep the powder close to the primer. Or, is that not an issue if you plug just the mouth opening?
The only 'issue' I had was the ejectors pop the whole thing out each time. I figured if I were doing a lot at one time I'd disable the ejector. The other 'issue' is the case getting stuck in the blank. I just used a flathead screwdriver to pop it out like on a Wilson hand die.
I like the COW because you don't have to point the gun up to keep the powder close to the primer. Or, is that not an issue if you plug just the mouth opening?
My goal for the smaller diameter was to increase pressure for the case so less powder can be used. I still need to try making a hydraulic die one of these days, but this got me thinking.
For my new wildcat it takes 25g trailboss with a 155 in a normal 30 cal barrel. Wanted a tiny hole to use a couple grains and a patch without using an old barrel. Just brainstorming here
For my new wildcat it takes 25g trailboss with a 155 in a normal 30 cal barrel. Wanted a tiny hole to use a couple grains and a patch without using an old barrel. Just brainstorming here
Gotta admit some of M's questions are a bit interesting. When I first started my competitive cast bullet benchrest shooting. I hunted down one of the very best and I sunk my hooks into him so deep he couldn't take them out and then go run away and hide. Unfortunately some of those on here are not familiar with who those folks are. So they have now missed out on the same opportunity that I had by pissing them off instead of accepting their willingness to help.
Louis, I blocked the guys who have been rude. I won’t waste my time explaining how this all started. If you don’t like me, avoid my posts.
Edit, I don’t read anything from al, Butch, fb or others that have been rude. Don’t care. Don’t need them. Don’t wish them ill and hope they can look in the mirror and be proud of the things they’ve said.
Last edited:
I haven’t tried shotgun powders yet. Have you found an advantage over pistol powders?
LOL!!
And P'losee prayed for help from God Above before sending over the articles.......
friggin' liberals
GeneT
Active member
Shotgun and pistol powders are the same thing. Most of those powders are, or can be, used for both.
Parshal - a rotary tumbler with stainless medium will clean the COW right out. And thanks for making me aware of the 6.5SS - I didn't even know I needed one until now!
GsT
I use SS media after fireforming but I still have a couple out of a hundred with stuck COW. I inspect each one and then use the ultrasonic a couple rounds to get it loosened. It's a PITA.
I want to try no COW. The question is do I have to keep it pointed up to fire? With COW I can point it in the tractor bucket.
I've made three 65 SS. I like them but the performance gain over a 65 WSM isn't dramatic enough to make up for the extra brass prep. Now that I've got a lot of brass I like it more.
I want to try no COW. The question is do I have to keep it pointed up to fire? With COW I can point it in the tractor bucket.
I've made three 65 SS. I like them but the performance gain over a 65 WSM isn't dramatic enough to make up for the extra brass prep. Now that I've got a lot of brass I like it more.
C.L. Peterson
Active member
Hydro-forming cases
There is a source for same
DJ's Brass
He will hydro-form about all calibers including 6 ppc
also trims necks
CLP
There is a source for same
DJ's Brass
He will hydro-form about all calibers including 6 ppc
also trims necks
CLP