Neck size only VS full length size for bolt action target rifle?

Seems to be a pretty standard practice in the target shooting world. I do it, but have to admit I have never done an analysis to determine if in fact in increases the accuracy of the round (in my gun).
 
i neck size for bolt because :

1- requires no lube, makes me save alot of time lubing and cleaning lube.
2- brass lasts longer.

full length for range pickups, semi autos.
 
after 6 hot reloads on 300 win brass most still did not require a full resize....
Oh yeah you could feel that the bolt was "tight", meaning that the brass was properly sized to the chamber. Too tight? no.

I sold the rifle so I full resized, trimmed and annealed all my brass for the next rifle.
 
I can get straighter ammo partially sizeing cases in a full-length die than I can with my neck bushing dies. That eventually lead to getting full length and even some SB FL bushing dies for tight chambered rifles. If there was a loss of accuracy I sure can't detect it.

There may be accuracy/case life advantage to neck sizeing in sloppy factory chambers, but I find myself loseing enthusiasm for seeking to fix the gun maker's problems on the reloading bench.
 
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