Neck turning finally done
- Thread starter GhengisAhn175
- Start date
I have to. 10+ firings on this 260 brass, 3 different chambers.
And now this third third one is a tight neck chamber and my loaded round diameter was my fired round diameter.
Plus i I was getting bad donuts.
Now that I "have to" might as well make them perfect
And now this third third one is a tight neck chamber and my loaded round diameter was my fired round diameter.
Plus i I was getting bad donuts.
Now that I "have to" might as well make them perfect
Looks like you cut into the shoulder pretty deep. You might want to back off the shoulder a hundredth or so even though your cutter has the correct shoulder bevel. I'm looking at the ridge left halfway up the shoulder for reference.
Don't know how someone can dislike thegerman's post .
it looks deep but it's the angle of the cutter from 21st century.
If i back it off slightly doesn't cut enough.
it looks deep but it's the angle of the cutter from 21st century.
If i back it off slightly doesn't cut enough.
What tool did you use to turn the necks? I have the 21st Century lathe moving into the crosshairs of my credit card.
Just outside neck turn.
For us Mag feeding type shooters, it's important you get the oversized mandrel to ensure everything is pushed out.
my Recommendation:
-deprime and clean cases
-anneal
-full length size with a non bushing die and use an expander ball
-get an oversized mandrel for your cutter
then neck turn. You will have to size your cases again but his time can just do the neck.
I know a neck turning set up isn't something everyone wants to buy because it's pretty much a one time use tool and done.
its also VERY tedious.. Takes about 1-1:30 minutes per case when you have a good rhythm. I'm willing to work with hiders neck turning cases. Gonna have to send me a PM for that.
For us Mag feeding type shooters, it's important you get the oversized mandrel to ensure everything is pushed out.
my Recommendation:
-deprime and clean cases
-anneal
-full length size with a non bushing die and use an expander ball
-get an oversized mandrel for your cutter
then neck turn. You will have to size your cases again but his time can just do the neck.
I know a neck turning set up isn't something everyone wants to buy because it's pretty much a one time use tool and done.
its also VERY tedious.. Takes about 1-1:30 minutes per case when you have a good rhythm. I'm willing to work with hiders neck turning cases. Gonna have to send me a PM for that.
I already bought the K&M carbide version but i got it in the 6.5mm which is the caliber that i am shooting. it deffinitly widens the case out at the neck with an expander die setup and i have to resize afterwards. i went ahead and ordered a non-cutting steel pilot so that way i can just do the outside as i think the inside gets too mangled and then doesnt have an even release. i know i had at least one round in each test that i ran this weekend and only 1 round was way off compared to the others in velocity and POI.
Talk to K&M they sell custom ground mandrels. You can ask them for their advice; you do NOT have to get oversized
mandrels it's just a suggestion. Just like using a bushing die bs a neck/body die
You can measure out the diameter of your current ones also. You just want to be a thousandth oversized from bullet caliber
mandrels it's just a suggestion. Just like using a bushing die bs a neck/body die
You can measure out the diameter of your current ones also. You just want to be a thousandth oversized from bullet caliber
