Crooked Necks on 300-221 formed from remington 221 brass

[300whisper_newbie]

300whisper_newbie Wrote :

I used the redding dies recommended on your website and most of the necks came out slanted. Is this a problem? Does it get fixed during fireforming? Do I need to trim it even? Is there even a standard trim length for 300-221?

Thanks,

--Chris

[300whisper_newbie]

QuarterBore Wrote :

Very strange... do you have a way to take photos?

I have not setup my reloading equipment since we moved (yea it has been almost two years ). Just the same, I never had any problems with the necks so I will try to fnd the time to set up my press and form some 300/221 brass when I get a chance...

[300whisper_newbie]

300Whisper_newbie Wrote :

I think I may have done a bad job of explaining the situation. I looked at your photos on the website, if you look at the loaded 300-221 round in the pictures you can see that the end of the case neck is not square to the cartridge, there is slight taper to the right/left in the picture. Mine came ot the same way, the neck is axialy straight and centered in the cartridge, but the mouth is next perfectly square.

--Chris

[300whisper_newbie]

QuarterBore Wrote :

In this pic?



From: http://quarterbore.com/300whisper/brass.html
Left to Right: 221 Fireball, 7mm/221, 300/221, loaded 300/221, 223

Sorry, I must be slow? I don't believe that the shoulder is supposed to be square? I have a box of Corbon Ammo at home and I will see if I can get a high resolution scan of one of those rounds...

[300whisper_newbie]

300whisper_newbie Wrote :

Yeah thats the picture I was talking about.. Yours are almost perfectly square, I'll try to get some pictures when I get home tonight, in the meantime I put together this quick picture from the one you posted :



In my resized cases the two lines are not parallel to each other... I noticed yours had just a bit if skew, some of mine are perfect, some are like yours, and there are some that look terrible..

--Chris

[300whisper_newbie]

RokChuckrSlave Wrote :

Chris,
I have noticed that when forming from .221 that for some reason the necks are uneven at the top. The shoulder and neck are totally straight though. To clarify what I am saying, when you trim your brass for OAL the cutter will contact one side first.
I do not consider this a problem with forming, just trim to make square and have at it. You might measure 10 or more cases and see which ones are the shortest and use that for your case length(once trimmed square of course).
Keep in mind that upon initial firing they will grow in length some, so if you find one that is way shorter than the others it might come up to your desired size after firing. I would still trim it square though or you bullet will have a hard time seating straight. Maybe use these rounds to a a general zero.
Hope this helps,
Tim