turning or reaming, a couple of questions

[uk roe hunter]

Hi guys,
Hope you all had a nice christmas. Happy new year to all.

here is the problem.

I have loads of brass i have full length resized from .308 win to 7mm08 rem. However the necks are now over thick and they are dificult to chamber. I need to either turn or ream them.

I would like to ream them (trimming the inside?) becuase they are cool and nickel plated. If i ream them then do i have to put them back through my resizing press for the inside of the neck thickness.

If i turn them they will have a brass neck on a nickel body, i can live with that if it is better.

I have been recomended a tool by one of the guys on here, does anyone else have any opinion as to what the best tool is?

steve

 

[Walkalong]

Ream them.

Forster makes nice neck reamers as well as Wilson.

 

[Walkalong]

would like to ream them (trimming the inside?) becuase they are cool and nickel plated. If i ream them then do i have to put them back through my resizing press for the inside of the neck thickness.

Did not answer this. Yes you will, unless you get it perfect. Plan on resizing.

 

[uk roe hunter]

ok, i reamed some and i am finding they still don't chamber very well. it seems that the geometry of the shoulders are slightly different. it seems the area where it changes from the neck to the shoulder is thicker. i reckon i might turn some and then resize them and look again. I can't waste the stuff i have loads of it, i have resized it to 7mm08 so it will be dificult to give away.

steve

 

[TEDDY]

sizing

if you reamed them and resized they should be alright if you used right size reamer.

 

[uk roe hunter]

ok guys, thanks for the help. I have bought a hornady outside neck turner from the mighty 'bay.... the neck walls were generally .6 of a mm thick where a proper one was .45 ish and ones sized UP from 243 .35. i will turn them down to the .45 ish. I will loose the really cool nickel plated finnish on the neck, but hell, you can't have everything.

any top tips for using this tool?

steve

 

[Walkalong]

Just turn the neck just into the neck/shoulder junction. Don't stop short and don't cut way into it. Good luck. You should be fine.

When I prep brass for my bench gun, I ream, then turn, the necks. Seems to do a little better this way vs just turning them. No miniature lumps inside or out.

Watch out for "doughnuts" inside the neck near the neck/shoulder junction after fireforming or after a couple of fireings. This will not affect anything unless you are seating the base of the bulet deeper than the neck though.

You can always ream them out, but that will include the cost of a, probably, special size reamer.

The difference between where your neck/shoulder junction is right now, compared to where it will be after fireforming, is going to determine a lot.