Going to be reloading some 6.5CM Prime brass with Hornady 140 ELD-m bullets. What Redding bushing have those who’ve been using that setup using? I was using a Forster FL die and Hornady brass but I’ve had terrible luck blowing primers on once fired brass. Never really figured out the problem but thought maybe neck tension was to blame so I’m switching to a Redding S bushing die. Going to be running it in a RPR with a 26” Bartlein chambered by bugholes.
Redding bushing for Prime brass/Hornady ELD-M???
- Thread starter mustang-cars
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Uh no neck tension and your Forster FL sizing die is not causing your blown primers. Tons of us are running Forster FL sizing dies with Hornady brass. .002 neck tension which is exactly what you want.
your load is most likely the cause along with many other things.
your load is most likely the cause along with many other things.
My load was 42.6gr of H4350 going 2820avg FPS over a Magnetospeed (24” factory barrel at the time). Once fired brass, shoulder bumped .002. CCI primers. Maybe it is the load. Didn’t think that was too unreasonable though. Lots of people are also running 42.6 of H4350. What do you suggest the “other things” are?
Are you jammed or close to lands? Have you measured distance to the lands with an overall length gauge ? How far are you off?
did you do load development and work up to 42.6? Did charges under 42.6 also blow primers? How did the primers look if Not? How does the case head look? Ejector marks?
did you do load development and work up to 42.6? Did charges under 42.6 also blow primers? How did the primers look if Not? How does the case head look? Ejector marks?
I was .020 off of the lands. I found the lands using a Hornady OAL gauge.
I did work up to the 42.6gr load. The only thing that was noticeable was slightly cratered primers and sometimes some flattened primers. Those signs were inconsistent though. I did go back and find some light ejector marks on some of the cases upon further inspection. I shot probably 30 rounds of that load on a 75 degree day with no problems. Great accuracy, sd of 9. Went to shoot one evening at 54 degrees and on the 9th round started blowing primers. Blew another primer on a cool day later on. Decided to stop there. I ended up pulling all the rounds down.
I did work up to the 42.6gr load. The only thing that was noticeable was slightly cratered primers and sometimes some flattened primers. Those signs were inconsistent though. I did go back and find some light ejector marks on some of the cases upon further inspection. I shot probably 30 rounds of that load on a 75 degree day with no problems. Great accuracy, sd of 9. Went to shoot one evening at 54 degrees and on the 9th round started blowing primers. Blew another primer on a cool day later on. Decided to stop there. I ended up pulling all the rounds down.
Not to discourage you from the Redding product ( I use many Redding dies) but I really don't think the sizing die is the source of your issue.
Based on your description it sounds like you may be jamming even though you do not believe that is the case. This could be due to an issue with the original measurements or a change in some other variable. I would focus my investigation on this area of the process.
Based on your description it sounds like you may be jamming even though you do not believe that is the case. This could be due to an issue with the original measurements or a change in some other variable. I would focus my investigation on this area of the process.
With you saying flattened primers, ejector marks it seems your too hot. Drop your charge. Especially if you're sure your .02 OFF the lands.
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