Neck Bulge Issue?

[quig]

Just wondering, will I have any issues with these reloads?

300 Blackout
Converted .223 case.
(M80) surplus pull down.

Long story short, after my initial cut down/size/trim/debur I was finding that my neck diameter was too lose and as I seated the bullet, I was physically loose at the cannelure. So I decided to resize thinking that the trim/debur opened up the neck slightly. These rounds were primed, so I took out the decap rod.

Actually, I not only took out the rod, but also the inside neck sizer. I only realized this 300 rds later.

I think that I am okay. My google and search skills didn't come up with a clear answer, but I did find that some dies do not even include the internal.

I am using 300 BO Lee Dies.

Any experience. Am I not realizing a safety concern?

The left is the one with the bulge. The right is a reload that seated the 147gr without the second resizing.

ImageUploadedByTapatalk1337363947.761081.jpg

[DarkSoul]

Something is wrong there, I am not familiar with the Lee dies, I bought the Forster Ultras, and none of mine has had any sort of bulge, And I am using the same 147g pull down bullets.

So can you physically shift the bullet in the case, do you have a crimping die, and is that adjusted correctly, is your OAL of the brass correct, and is the forming die bottoming out on the shell plate? It may be the brass is not going up far enough into the forming die, and lastly, how old is the brass, if it's been reloaded many times without being annealed again, it could be "springing" back open.

I have loaded probably 4-5 different bullets for testing and have had no issues as of yet. Check all of the above and see what happens.

[Full Clip]

I would not shoot these, especially given that you're using a self-loading rifle.

[Bill Steele]

It sounds like your expander is too large. I think I read somehwere that Lee will turn it down for you for free, or just have a smith chuck it up in his lathe.

I wouldn't shoot them myself. I would get my expander sized properly, pull them down and start over.

[quig]

Well, I found some other info from other forums and felt comfortable shooting them. This was 2 days ago before anyone responded. I ran through a little over 100rds and each worked without any issues.

I know what was wrong. I just left out the expander when I put them through a second time.

Thanks for the responses.

[Fjold]

When you case through the sizer, the sizing plug pushes through the neck into the case body. The die then squeezes the neck down below the finished diameter. As the case is pulled out of the die the expander plug sizes the neck to the correct inside diameter to hold the bullet.

All you did was size the neck down and not re-expand it. The bullets should have been a little harder to seat and they may have been deformed slightly due to the extra force applied by the seating plug on the bullet.

Standard work the case necks to much which is why some cases split at the neck after a couple of reloads.