I loaded 25 rounds for my 243win , going hunting tommrow , tryed one in the rifle and it was very hard to close the bolt. Checked the rest and about half were good and the other half is crap. OAL all the same,did my resizing die back out durning resizing step? I have loaded alot of rounds , this is a first. Lee full size die , all bullets seated the same , same amount of crimp pressure . There are rub marks on the brass about 1/2 inch below the should circlular as if the round was spun into the chamber.
What the #@!!* went wrong?
- Thread starter deerslayer
- Start date
- Location
- big sky country
Is the brass too long? You may need to trim it.
Also double check that you have the die set at the proper depth.
Also double check that you have the die set at the proper depth.
- Location
- big sky country
If there was enough powder in the brass to be compressed (that crunching sound) when the bullet was seated, the brass may give outwards (bulge) under the pressure.
from mistake,s i,ve made in the past..
i,ll bet you have notdone the full sizing...or my second guess would be..when seating for depth..you have die set to deep and its crumbling the neck a bit..
just for ####s and giggles..next time your resizing a round..take it from press and try in the gun..
try every step in your reloading to see if the round chambers properly..ive found this method to be of most help to me
........let us know what you find out
i,ll bet you have notdone the full sizing...or my second guess would be..when seating for depth..you have die set to deep and its crumbling the neck a bit..
just for ####s and giggles..next time your resizing a round..take it from press and try in the gun..
try every step in your reloading to see if the round chambers properly..ive found this method to be of most help to me
........let us know what you find out
- Location
- AB foothills
agilent_one said:
Bingo
agilent_one said:
He said that half worked fine, the other half didn't.
Perhaps it backed out slowly as it was being used. It would not make sense for it to be set incorrectly at first, and have half work fine.
Another thought. Maybe the cases are stretching, and are at different lengths now (range pick-ups, different number of firings, ect.). If they have not been trimmed to length, there could be some buckling in the longer ones.
- Location
- AB foothills
Screw down the sizing die a little farther an I bet they will all work. As long as they are all trimmed properly of course.
Is it a lead tipped bullet? A new bullet? I have seen some tips deform and if this was your reference bullet, the OAL could be longer than you think. You didn't seat the bullet deep enough to compensate for the shorter length. It may result in the ogive hitting the lands too soon.
I had some Hornady SP's that did just this.
I had some Hornady SP's that did just this.
A different bullet could be the problem, but you would see the rifling marks on the bullet when you extract it and it may be hard to extract.
My guess would be that you did not cycle the press all the way everytime or the sizing die backed out a bit.
This is another case where a body sizing die would come in handy. With a Redding body sizing die you can resize a loaded round. This die will size the body and bump the shoulder back to spec.
My guess would be that you did not cycle the press all the way everytime or the sizing die backed out a bit.
This is another case where a body sizing die would come in handy. With a Redding body sizing die you can resize a loaded round. This die will size the body and bump the shoulder back to spec.
OneBarfly
CGN Ultra frequent flyer
I would tend to agree. Either the sizing die was not screwed down far enough for the "bounce effect" and started to back-out while sizing or the seating die was screwed down too far, pushing the shoulder back. My guess is the sizing die issue.
- Location
- Saskatoon, SK
Best guess is your seating die is adjusted incorrectly. Depending on the stroke when seating the bullet, some of them would be fine if you stop early, if seating die is too low or bullet seater is set incorrectly and you use full stroke, the case can bulge at neck or other location. Hard to write this stuff correctly.
Best fix, make sure you always use the same stroke when seating - then check results. Likely that you will need to back out seating die a bit, alternatively, back off the bullet seater inside the die slightly and check your results - test fit in rifle and check COL.
Why is it so difficult to explain the things you would naturally do while standing at the bench?
Best fix, make sure you always use the same stroke when seating - then check results. Likely that you will need to back out seating die a bit, alternatively, back off the bullet seater inside the die slightly and check your results - test fit in rifle and check COL.
Why is it so difficult to explain the things you would naturally do while standing at the bench?
Was this new brass or had it been fired previously?
If it was used was it brass fired in this rifle?
When you were resizing did you have all cases lubed equally?
Was you sizing die screwed in so that it makes firm contact with the shell holder when the ram is raised?
Is your press mounted on a solid bench and did you make sure that the ram was pushed all the way up on each stroke?
If it was used was it brass fired in this rifle?
When you were resizing did you have all cases lubed equally?
Was you sizing die screwed in so that it makes firm contact with the shell holder when the ram is raised?
Is your press mounted on a solid bench and did you make sure that the ram was pushed all the way up on each stroke?
- Location
- WMU247 near Edmonton
my guess...
is the seating die roll crimping the bullets, if so perhaps the brass has different OAL and needs some trimming.
The roll crimp on the longer brass may actually be putting downward preasure on the case at the end of the stroke and causing the brass to buldge and you have a tight chamber.
is the seating die roll crimping the bullets, if so perhaps the brass has different OAL and needs some trimming.
The roll crimp on the longer brass may actually be putting downward preasure on the case at the end of the stroke and causing the brass to buldge and you have a tight chamber.
