Flyer Question

[expiper]

HI flyer,,,,use a tighter bushing --and stop annealing and cleaning toooo much,,do more shootin and less fiddilin,,,you are complicating things,,,,,Roger

 

[jsthntn247]

Cull the brass that has comparatively tighter neck tension feel when seating.
Jim

I seperated the piece of brass last night that caused the flier along with two other pieces that were fliers in another group. I went through the same steps in my reloading procedure including anealing with all the brass shot that day and the day before. I wanted to test the tension on all the brass to see if that could be the issue so I expanded all the pieces up on a .335 mandrel. I was sure to press them up on the mandrel slowly so I could feel the necks expanding and the effort it was taking. Those 3 pieces along with 4 others (from the day before that I didn't keep track of fliers) were noticeably harder to expand and tighter on the mandrel. What is causing this I have no idea, but those are in the trash now, don't even want to use them as culls because they might get cycled back through.

 

[22BRGUY]

Cull the brass that has comparatively tighter neck tension feel when seating.
Jim

I seperated the piece of brass last night that caused the flier along with two other pieces that were fliers in another group. I went through the same steps in my reloading procedure including anealing with all the brass shot that day and the day before. I wanted to test the tension on all the brass to see if that could be the issue so I expanded all the pieces up on a .335 mandrel. I was sure to press them up on the mandrel slowly so I could feel the necks expanding and the effort it was taking. Those 3 pieces along with 4 others (from the day before that I didn't keep track of fliers) were noticeably harder to expand and tighter on the mandrel. What is causing this I have no idea, but those are in the trash now, don't even want to use them as culls because they might get cycled back through.

I think you're doing a great job in narrowing this down and please keep us posted. On those you threw in the trash, wondered if you would anneal them again with a bit more flame time, if that would make any difference in their stiffness? Just a thought that they might have a slightly different metallurgy if that's the right word or molecular structure.

 

[jsthntn247]

Cull the brass that has comparatively tighter neck tension feel when seating.
Jim

I seperated the piece of brass last night that caused the flier along with two other pieces that were fliers in another group. I went through the same steps in my reloading procedure including anealing with all the brass shot that day and the day before. I wanted to test the tension on all the brass to see if that could be the issue so I expanded all the pieces up on a .335 mandrel. I was sure to press them up on the mandrel slowly so I could feel the necks expanding and the effort it was taking. Those 3 pieces along with 4 others (from the day before that I didn't keep track of fliers) were noticeably harder to expand and tighter on the mandrel. What is causing this I have no idea, but those are in the trash now, don't even want to use them as culls because they might get cycled back through.

I think you're doing a great job in narrowing this down and please keep us posted. On those you threw in the trash, wondered if you would anneal them again with a bit more flame time, if that would make any difference in their stiffness? Just a thought that they might have a slightly different metallurgy if that's the right word or molecular structure.

I will do this tonight and see what happens. I also believe that it is the chemical make up of the brass causing some to anneal differently than others. I tested some new brass from the same box, and when pushed up on the mandrel, had the same feel and grip as the bullets causing the fliers. My theory is that I did not anneal long enough and the brass (except for those few pieces) is still too hard causing it to have to much memory (springback) and not grip the case as it did when new.

 

[jsthntn247]

Annealed the brass longer that was causing fliers and am still getting more tension on them than the others. I'm starting to think it has something to do with the necks being squeky clean from the ultrasonic cleaner.

 

[22BRGUY]

Maybe let a test group of 5 or so just get dirty and compare?

 

[jsthntn247]

Shooting a match Saturday, I plan on getting about 60 dirty. I'm going to run a string with sonic cleaned brass, one with tumbled only brass, and one with sonic cleaned and imperial graphite in the necks. All same loads, bullets..etc.

 

[22BRGUY]

Sounds like a good plan. Over time I've come to the place where I just lightly plastic brush the inside of the necks, trim and chamfer and that's about it. Every now and then I might tumble or lightly 0000 steel wool the outside of the cases to brighten them up a little and it seems to work but always open to other ideas. Thanks again for the testing and info.