Gunsmithing Cutting a die with a chamber reamer.
- Thread starter howdydoit
- Start date
Re: Cutting a die with a chamber reamer.
I "thought" but "don't know" that the reloading die had to be slightly smaller that the chamber......
I "thought" but "don't know" that the reloading die had to be slightly smaller that the chamber......
Re: Cutting a die with a chamber reamer.
some people do this, I think you can bump the shoulder with a die like that. The typical die is cut with a slightly undersized reamer, so that the brass can be squeezed down slightly on the diamter axis. If you fire form the brass to your chamber, and only ever want to shoulder bump your brass, a chamber reamer could be used to make the die. If brass got too big in diameter to use in your chamber, this die would not be able to size the brass so it would work in your chamber again.
Dave
some people do this, I think you can bump the shoulder with a die like that. The typical die is cut with a slightly undersized reamer, so that the brass can be squeezed down slightly on the diamter axis. If you fire form the brass to your chamber, and only ever want to shoulder bump your brass, a chamber reamer could be used to make the die. If brass got too big in diameter to use in your chamber, this die would not be able to size the brass so it would work in your chamber again.
Dave
Re: Cutting a die with a chamber reamer.
So if you want to design your own wildcat, you could pay for the chamber reamer, the sizer die reamer, and maybe some form die reamers.
And custom reamer ain't cheap.
At least you get to use the chamber reamer for the seating die.
So if you want to design your own wildcat, you could pay for the chamber reamer, the sizer die reamer, and maybe some form die reamers.
And custom reamer ain't cheap.
At least you get to use the chamber reamer for the seating die.
Re: Cutting a die with a chamber reamer.
As state above, the seating die can. I've seen folks cut a shorter version for a resize die with questionable results. It works relatively well with a case that has a lot of taper, but an AI round isn't a good candidate. Rather than re-cut an existing die, It's usually easire to start form scratch on the seating die. Hornady makes neck only sizers in most common calibers that will accomodate AI cases. (That's the route I usually go.) Redding stocks FL die sets for an <span style="font-style: italic">amazing</span> number of wildcats. You might want to give them a call and save yourself some headaches.
As state above, the seating die can. I've seen folks cut a shorter version for a resize die with questionable results. It works relatively well with a case that has a lot of taper, but an AI round isn't a good candidate. Rather than re-cut an existing die, It's usually easire to start form scratch on the seating die. Hornady makes neck only sizers in most common calibers that will accomodate AI cases. (That's the route I usually go.) Redding stocks FL die sets for an <span style="font-style: italic">amazing</span> number of wildcats. You might want to give them a call and save yourself some headaches.
Re: Cutting a die with a chamber reamer.
There are chamber specs and there are chamber specs. I prefer SAAMI chambers for a number of reasons. One reason is because conventional dies work, period.
People talk about sacrificing accuracy with a SAAMI spec chamber, but I have seen plenty of 1/2MOA performance from some of my SAAMI chambered rifles. Yes, tighter necks can do better, but I prefer not to go with the neck turning issue.
A BR shooter would have good reason to disagree with my approach; but folks who do what I do, what I call 'practical shooting' maybe shouldn't usually give such things a second thought.
As LL recently said, it's about how hard you want to work. Well, I want to work just hard enough and no more. It's not like I'm getting any younger, or have extra time to invest, and all that. The SAAMI spec lets me get it done quite well enough for my liking, with less work.
While wildcatting can create great personal satisfaction, the rich panoply of available chamberings makes such extraordinary efforts more a matter of vanity than practicality these days. I can get to my destination minus the vanity.
Greg
There are chamber specs and there are chamber specs. I prefer SAAMI chambers for a number of reasons. One reason is because conventional dies work, period.
People talk about sacrificing accuracy with a SAAMI spec chamber, but I have seen plenty of 1/2MOA performance from some of my SAAMI chambered rifles. Yes, tighter necks can do better, but I prefer not to go with the neck turning issue.
A BR shooter would have good reason to disagree with my approach; but folks who do what I do, what I call 'practical shooting' maybe shouldn't usually give such things a second thought.
As LL recently said, it's about how hard you want to work. Well, I want to work just hard enough and no more. It's not like I'm getting any younger, or have extra time to invest, and all that. The SAAMI spec lets me get it done quite well enough for my liking, with less work.
While wildcatting can create great personal satisfaction, the rich panoply of available chamberings makes such extraordinary efforts more a matter of vanity than practicality these days. I can get to my destination minus the vanity.
Greg
Re: Cutting a die with a chamber reamer.
Only thing that can be done with a chamber is a shoulder bumb die, seating dies, and neck bushing die.
Only thing that can be done with a chamber is a shoulder bumb die, seating dies, and neck bushing die.
Re: Cutting a die with a chamber reamer.
Could you make a small body die also? By running the reamer into an open ended threaded stub. I make my trim bushings for my wilson trimmer this way and have wondered if this would work.
My neighbor brought me some steel he says will heat treat so hard that a file would not cut it and I made him a trim die. He offered to heat treat any dies I needed made for free and gave me enough material to make a bunch of dies. I have been needing to make some 30-338Lapua improved dies but just cannot ever seem to get on that project.
Could you make a small body die also? By running the reamer into an open ended threaded stub. I make my trim bushings for my wilson trimmer this way and have wondered if this would work.
My neighbor brought me some steel he says will heat treat so hard that a file would not cut it and I made him a trim die. He offered to heat treat any dies I needed made for free and gave me enough material to make a bunch of dies. I have been needing to make some 30-338Lapua improved dies but just cannot ever seem to get on that project.
