Newbie Questions about reloading for a BAR .300WM Using LEE Delux 3 Die set


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leftym4
October 16, 2012, 01:48 PM
i have a set of 2 RCBS dies but have been considering the LEE delux 3 die set.
but reading it says with the collet neck sizing die you get more accuracy but harder to chamber which may be fine with bolt actions but i am left wondering how about semi autos?

I shoot a browning BAR .300wm

My first loading will be loading with once fired brass that still looks like new is it ok to skip the tumbling process ? I read it would be ok would it effect accuracy ?

Ultrasonic vs tumbling . I like the ultrasonic idea if it cleans just as good i really rather avoid the mess and noise of tumbling not to mention possibility of lead dust ( i have young daughters and would like to avoid any possible lead problems)

Also i will be reloading for 1 rifle I have no intentions of ever getting another .300 wm so this brass will be fired formed to this rifle so how importing is trimming using either of the mentioned die sets above for the once fired brass?

Thank you

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slowr1der
October 16, 2012, 02:13 PM
You need to full length resize the brass for a semi automatic rifle. It is also a good idea to crimp the rounds as well.

As for tumblers, it's a personal preference.

For trimming, you need to measure each piece of brass after you resize it and when it gets to the max length you will need to trim it. It really has nothing to do with what rifle it is fired in. Rifle brass will grow with each firing.

popper
October 16, 2012, 02:15 PM
Stay with the RCBS, get the US. Possum hollow trimmer works for any 30 cal. If you set your HS/die correctly, you won't use the trimmer much. Get a good inside neck chamfer tool, not the Lee. Neck sizing is not for semi-auto.

slowr1der
October 17, 2012, 12:03 AM
Stay with the RCBS, get the US. Possum hollow trimmer works for any 30 cal. If you set your HS/die correctly, you won't use the trimmer much. Get a good inside neck chamfer tool, not the Lee. Neck sizing is not for semi-auto.I disagree with the first part of this. I normally like RCBS and I love my RCBS press. I have a couple of set of RCBS dies as well as Lee dies and a couple of others, and I prefer the Lee dies. The only thing I do to the Lee dies is add a Hornady lock ring to the seating die as I don't like the Lee lock rings. They are still quite a bit less than the RCBS dies price wise, and I like them better.

As for the trimmer that is a good recommendation, but you can get by with much cheaper trimmers if you don't want to spend that kind of money. As for the chamfer tools, I agree you need one. I've never used the Lee one, but they are all pretty cheap. The RCBS one I have works well.

steve4102
October 17, 2012, 01:25 AM
I'm not going to debate which brand of dies are better. I use both and I have my opinion, but that is not what you asked. You asked about the Lee Collet Neck sizing die. It is a great neck sizing die, but it will NOT work for your 300WM Browning BAR. Your rifle ammo need to be Full Length sized. You already have the die to do the job, purchasing the Lee set will accomplish nothing.

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