chamfer before sizing?
- Thread starter reaper4
- Start date
ninehorses
New member
Are you shooting them out of a $3000 dollar rifle, or a $300 dollar rifle? Are you trying to get hunting accuracy, or trying to win a bench rest match?
Totally different answer for each. I think you are over thinking this, and worrying about stuff that advanced reloaders worry about. Ideally you would use cases that have been fired at least once in your chamber for load workup. You would also want to sort through them and separate out any that weren't identical to the others. Weigh them all, check them for capacity, turn necks, trim them all to the exact same length, check them for runout...
Or... load them and call it good. Not every rifle will shoot a one hole group, even with the best reloads. You should get slightly better accuracy from cases that have been fire formed to your chamber. Will you be able to tell it? That will depend on the rifle, and who is pulling the trigger. Honestly, new untouched, chamfered, resized, or once fired, that out of most off the shelf rifles, it would take a lot of testing to tell any difference. Your new brass will have slightly less capacity than once fired, your resizing die will bring them back close to the same size, they will be slightly bigger. Just the way it is. Not worth worrying about.
Totally different answer for each. I think you are over thinking this, and worrying about stuff that advanced reloaders worry about. Ideally you would use cases that have been fired at least once in your chamber for load workup. You would also want to sort through them and separate out any that weren't identical to the others. Weigh them all, check them for capacity, turn necks, trim them all to the exact same length, check them for runout...
Or... load them and call it good. Not every rifle will shoot a one hole group, even with the best reloads. You should get slightly better accuracy from cases that have been fire formed to your chamber. Will you be able to tell it? That will depend on the rifle, and who is pulling the trigger. Honestly, new untouched, chamfered, resized, or once fired, that out of most off the shelf rifles, it would take a lot of testing to tell any difference. Your new brass will have slightly less capacity than once fired, your resizing die will bring them back close to the same size, they will be slightly bigger. Just the way it is. Not worth worrying about.
Last edited:
reaper4
New member
thanks that's what I figured. im shooting them out of a RRA vsrminter that I have gotten consistant .50 groups if I do my part. just trying to keep it in that area rather than have the larger 1'' groups that some deem acceptable. just hunting loads but like to be able to trust my loads enough to reach out a little bit
case neck turning will likely do zero good for that rifle. been there, done that, got the t shirt for trying LOL
even with new brass I prefer to trim to uniform length, but as you've experienced sometimes new brass is too short to trim. I generally don't worry about that either, shoot it & resize it & at some point it will be long enough
even with new brass I prefer to trim to uniform length, but as you've experienced sometimes new brass is too short to trim. I generally don't worry about that either, shoot it & resize it & at some point it will be long enough
Originally Posted By: ninehorsesI think you are over thinking this, and worrying about stuff that advanced reloaders worry about.
Way over thinking it. For sure. And worrying about stuff that moderately advanced hand loaders worry about. More advanced ones don't worrying about that stuff anymore
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- DAA
Way over thinking it. For sure. And worrying about stuff that moderately advanced hand loaders worry about. More advanced ones don't worrying about that stuff anymore
- DAA
reaper4
New member
I neer thought about sizing new brass until this thread. but I wound up sizing after the chamfer and then once sized taking the hand chamfering tool I have and just running it around the mouth very lightly to assure and even chamfer and it all looks good so I guess from now on I will be doing things differently. running low on new brass almost shot all of it now so I will see how my first real reloads go after im down to fired brass only
I used to not bother with new brass, but then i bought a batch that had a bunch with out of round necks. Beat up in shipping I guess. After that I just started running them all through a full length sizer adjusted to put the shoulder where it needs to be.
Do any good? Maybe.
Hurt anything? Not so far as I can tell.
Do any good? Maybe.
Hurt anything? Not so far as I can tell.
BOWLSEYE
New member
If there was a burr in or on the kneck I would chamfer before sizing other wise I would do it after when the mouth is more concentric in shape.
New brass it a good idea to kneck size for uniformity. I like using a dry lube to size the brass then chamfer and measure for length.
If your only using one rifle you should be able to kneck size again after the brass is once fired and unless it needs trimmed you won't need to chamfer again.
New brass it a good idea to kneck size for uniformity. I like using a dry lube to size the brass then chamfer and measure for length.
If your only using one rifle you should be able to kneck size again after the brass is once fired and unless it needs trimmed you won't need to chamfer again.