lancetkenyon
Well-Known Member
Well, got home and pulled dies out for a few belted mags (RCBS 7RM & Redding .300WM), and low and behold, they both have a recess for the belt. Checked my Redding 6.5SLR and Hornady 6.5CM dies, no recess.
belted magnum FL dies
- Thread starter milboltnut
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slikmrc
Well-Known Member
It's not uncommon to get .014 to .016 shoulder bump with belted case dies set to cam. .003 shoulder bump is what I have my gunsmith shoot for when I have a rifle chambered. With the two 300 WBY's I have camming a RCBS and Forester die gives between .013 and .016 on the rifles. One is a custom barrel I had done years ago and one is factory barrel. Having your die and chamber matched that good is rare.
My dies don't have a recess. The belt is a leftover from the parent case used as a marketing gimmick used to sell guns and does absolutely nothing but prevent the die from fully resizing the case. This die was developed to fix that problem:
The recess in your die may be a new thing to address the belt problem.
Innovative Technologies - Reloading Equipment
Our patented resizing die can reload Winchester, Remington and Weatherby belted magnums up to 20 times, instead of just 2 or 3 times and the top of the die is a chamber width gauge.
www.larrywillis.com
The recess in your die may be a new thing to address the belt problem.
Its204fast
Well-Known Member
It seems like my Hornady dies have it for the 7mag but it doesn't help with belt buldge.
300Win Mag
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Innovative Technologies - Reloading Equipment
Our patented resizing die can reload Winchester, Remington and Weatherby belted magnums up to 20 times, instead of just 2 or 3 times and the top of the die is a chamber width gauge.
www.larrywillis.com
SSG Graybush
Well-Known Member
No the die goes down and stops just before the belt. You can see it on the brass. Disregard the belt and set the die up to only bump the shoulder back 2 thou like any other cartridge. As stated above. Dont over-cam like RCBS states, thats completely wrong. Shoulder bump determines sizing dies set up/height. When people listen to RCBS and do the slight over-cam and their headspace is longer they over size their brass. Causing poor accuracy, brass fatigue and end up with case head separation. I can get as many reloads from my 7mag or 300 wm as any other cartridge. People talk bad about belted mags when its really incorrect resizing.
^^ this
When I first set my 7stw RCBS to hit the shell holder and split cases after a cpl firings I discovered it was pushing back .015.
Best money I've spent was on a competition die set and competition shell holder set. If those are too expensive, get the larry willis collet die linked above if you are having sizing issues above the belt; it works as advertised.
Last edited:
mindcrime
Well-Known Member
MagnumManiac
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Please enlighten us on exactly which dies you have that do not have a recess for the belt to enter the die....cuz I ain't ever seen a belted die that didn't....not a FL or body die at least. Comp seaters don't, they do not require it.
Cheers.
milboltnut
Well-Known Member
RCBS told me that the recess stops the case to size and sets back the shoulder .003
bigbrad53
Well-Known Member
I second that. The die is supposed too do just that and no more.
