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Max run out on neck after resizing?

josebd

Silver $$ Contributor
Foster fl sizing die with expander ball,lapua brass,annealed before resizing,less than .001 in fired chamber.
.308
For target shooting out to 300 yards.
Would .002 or less be Ok?
 
this question is typical on these forums.
very generic question, no CONTEXT.
the results is answers that are the same, very generic.

DEFINE "target shooting at 300 yards"
what rifle, what sights/optics
what target..how big is the x ring
what position are you shooting from.
what is the load

Foster fl sizing die with expander ball,lapua brass,annealed before resizing,less than .001 in fired chamber.
.308
For target shooting out to 300 yards.
Would .002 or less be Ok?
 
Well it's not customerie to run much run out in match rounds but I had a friend run low on ammo at a 1000yds match went to a shoot off I said good luck he said I have 5 thousands run out in these rounds but I am shooting for score he shot a 50 score an a 1.700 inch group blowers him away.
 
I agree that the biggest thing is checking the runout on the bullet bearing surface of loaded rounds. I will check runout one time on a new barrel or if I get a new sizing die. For a barrel I load a handful of rounds, check runout, then fully chamber them in the rifle, and check runout again (make sure your ejector is removed from the bolt face) . If its good, I know the chamber is in alignment withe the bore. For a die, i just load rounds and check them. If both are good, I never check runout for that rifle again.
 
this question is typical on these forums.
very generic question, no CONTEXT.
the results is answers that are the same, very generic.

DEFINE "target shooting at 300 yards"
what rifle, what sights/optics
what target..how big is the x ring
what position are you shooting from.
what is the load
This curmudgeonly, useless answer is typical from this member. If you can’t answer the question, you can always complain about it.
 
lol and your answer was useful how ??
well then go shoot
i would never shoot .002 run out, but then i do not pull buttons thru necks.
you should be able to hit something
What's does curmudgeonly mean?
J
 
Foster fl sizing die with expander ball,lapua brass,annealed before resizing,less than .001 in fired chamber.
.308
For target shooting out to 300 yards.
Would .002 or less be Ok?
lol and your answer was useful how ??
well then go shoot
i would never shoot .002 run out, but then i do not pull buttons thru necks.
you should be able to hit something
I do believe fguffey has changed his user ID.:)
 
Foster fl sizing die with expander ball,lapua brass,annealed before resizing,less than .001 in fired chamber.
.308
For target shooting out to 300 yards.
Would .002 or less be Ok?
I agree with jepp2. The runout on the bullet is most important. If you're not turning the necks, the runout on the outside doesn't really tell you much. The Forster die centers from the outside, not the inside. Lapua brass, just like every other brand, is not perfect. Here are some Lapua .308 cases with a light cut. You can see most didn't cut all the way around which means they had a thicker and thinner side. If you turn the necks, turn all the cases the same and try for a minimum of 3/4 of the surface cut. At that setting a good portion will probably be cut 100%.
Lapua.jpg
 

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