Bumped shoulder too far

[Josh06]

For my own peace of mind I sacrificed one to see if they had been stretching all along. I know you can do the paper clip thing but I had to see.

I am using a Hornady comparator and I reset my die to bump .002. Hopefully I'll have 28 more pieces (lol) after I shoot these. If not, as far as lessons go 29 pieces of brass is pretty cheap. Thanks again all!

 

[jdyoung]

This is probably late, but , I would do like I do to form new brass to my chamber(s). False shoulder and COW it. Then anneal, ( you may want to anneal before false shoulder and COW). I can do all that at home, no trips to the range ( gas prices), no wasting bullets ( inflated prices).

 

[latestart]

just a point of curiosity, what is the diameter of the comparator ?

 

[Josh06]

just a point of curiosity, what is the diameter of the comparator ?

It's .378 inside but chamfered to .400 at the base. I drilled then chamfered it to use for this purpose.

 

[Josh06]

This is probably late, but , I would do like I do to form new brass to my chamber(s). False shoulder and COW it. Then anneal, ( you may want to anneal before false shoulder and COW). I can do all that at home, no trips to the range ( gas prices), no wasting bullets ( inflated prices).

I'll be at my lease next weekend I got to have something to do between duck hunting in the morning and pig hunting in the evening. I figure this will be a good way to pass the time as long as it works!

 

[jdyoung]

I'll be at my lease next weekend I got to have something to do between duck hunting in the morning and pig hunting in the evening. I figure this will be a good way to pass the time as long as it works!

Have fun !!!

 

[jdyoung]

It's .378 inside but chamfered to .400 at the base. I drilled then chamfered it to use for this purpose.

To start, was that the bank bushing with the .188" hole ?

 

[Wild_Bill]

Pull the bullets and ditch the brass.
Unless you neck them up to 338 then back to 30 cal at a false shoulder then you might save some. However you have likley fractured the case shoulders and base. I would start again.

 

[Josh06]

To start, was that the bank bushing with the .188" hole ?

It was the 6-27 bushing. Not sure what the exact size was before I drilled it.

 

[jdyoung]

It was the 6-27 bushing. Not sure what the exact size was before I drilled it.

Ok, the Hornady Lock n Load 6-27 or 627 bushing is a bullet comparator bushing. for .277 cal. You improvised, modified , overcame . How long have you been using it to measure ?

 

[Josh06]

Ok, the Hornady Lock n Load 6-27 or 627 bushing is a bullet comparator bushing. for .277 cal. You improvised, modified , overcame . How long have you been using it to measure ?

I just made it. I had never measured the actual amount of bump before yesterday. I improvised this to get a somewhat accurate idea of exactly how far I had pushed the shoulder back after figuring out that was the cause of separation.

 

[slikmrc]

I for one am rooting for your success! But don't think that I would bet it will work. LOL maybe you should start an opinion poll on this. Have fun be safe

 

[antelopedundee]

Just curios, but did you decide to bump the shoulder back because the fired cases wouldn't rechamber?

 

[Josh06]

Just curios, but did you decide to bump the shoulder back because the fired cases wouldn't rechamber?

No. I didn't realize I was bumping them any further than I had in the past when I was doing it. I hadn't loaded for this gun in quite a while. I think last time I had used the dies was 2016. I really don't shoot this gun much and it's my only 30-06ai. I must have messed with something at some point to change where I had it set and didn't double check when I resized the cases.