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Thread: Bullet Seating Question

  1. #1

    Default Bullet Seating Question


    I set down last night to load my first rounds. Everything went very well until it was time to seat the bullets. It seemed that the bullet seating was tight, and required more pressure than I expected, based on my limited experience reloading with a friend. When the cartridges came out, there was a very fine rim of copper around the case mouth on some of the cartridges, indicating some damage had been done to the bullet itself during seating. I stopped after loading 10 rounds because it just didn't feel right. I am going to pull the bullets tonight to see what's going on the lower part of the bullets.

    What am I doing wrong?

    I am considering backing away from the .300 rounds until I am more confident in my abilities, perhaps starting at 38 special and working my way up.

    180 grain
    Sierra 30 cal spitzer bullets
    300 Win Mag
    Lee dies
    69 grains of H 4831 powder

  2. #2

    Default tight bullets

    The problem might simply be that you didn't chamfer the inside of the case neck with the deburring tool. If these were new cases, it would have been good to size the cases to make sure the necks are concentric and expanded to the right inside diameter and, as I mentioned, chamfered to allow the bullets to be run in without digging into them with the case mouth.
    I don't know what your reloading experience is, but it sounds like you are just beginning. Reloading .38 Special cases has to be done in the proper manner, just like the .300 mags. I would suggest, if you know someone who has experience in reloading, to ask them to guide you in the beginning.

  3. #3


    Thanks for the tip. I pulled the bullets tonight, very little markings on them, but I discarded them anyway.

    The cases were brand new, and I did not chamfer enough in the beginning. I could still see the edges of the case were somewhat rough. I touched them with the chamfer tool again, and had no problems whatsoever seating the bullets. It felt very smooth in the press.

  4. #4
    Join Date
    Apr 2006
    SwampView AK, Overlooking Mt. Mckinley and Points Beyond.


    See if you can get them discarded bullets back. They're spend'sive.

    Smitty of the North
    Walk Slow, and Drink a Lotta Water.
    Has it ever occurred to you, that Nothing ever occurs to God? Adrien Rodgers.
    You can't out-give God.

  5. #5

    Default Bullet seating

    I agree with 'ol Smitty,
    Couple other things though.
    Need to run them through the dies anyhow, make certain the neck is expanded to the correct degree, and either Miller or Murphy put me onto Imperial Dry Neck Lube, Moly powder, a dab goes a long way and really takes wear and tear off cases, dies and operators as well. That wee bit of embedded moly lube in the neck cannot possibly hurt seating.
    Also, be very careful to adjust your crimp AFTER you have established your seating depth if you choose to crimp at all.
    Reloading to the highest proficiency consists of chasing seemingly endless details to the end of the trail. It can be cheap or expensive, easy or meticulous...
    The product is always reflected by the the attention to details.
    I don't toss bullets, I grade them.

    Last edited by snowshooze; 04-26-2008 at 00:10. Reason: Figured I best go ahead and kik a dead horse

  6. #6
    Join Date
    Jan 2007
    welfare state of Alaska

    Default Bullet seating issues

    I addition to backing the sizing die off and chamfering the case it make loading more uniform if you trim them all to the same length esp. if you are going to crimp the bullets. Even with the cases trimed to the same length I seat and crimp as seperate operations so I have a better "feel' for each and if something is wrong.

    Save the damaged bullets for load development or sigthing in althought they are proabley fine for normal use.
    Living the urban lifestyle so I can pay my way and for my family's needs, and support my country. And you?
    ".. ask not what your country can do for you, ask what you can do for your country" JFK

  7. #7

    Default Save bullets

    The guys are right, those bullets are just fine. If you use a "kinetic," a hammer type bullet puller, put a small piece of dense foam or a wadded up patch inside the nose to keep the bullet, if a soft point, from getting deformed. Any light marks on the bullet body won't hurt a thing.

  8. #8
    Member RMiller's Avatar
    Join Date
    Apr 2006


    There is nothing wrong with the bullets. Shoot them up.

    I dont crimp most of my rifle bullets and the few I do I do in a seperate step.

    With only one exception being my 500 S&W since it is a single shot I set the crimp in the seating process.
    "You have given out too much reputation in the last 24 hours, try again later".


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