seating depths ??

[doc gordon]

243 .0015 neck tension 115 berger.tried .01,. .015 .02 .025 .03 . after .02 bullet,measuring rifling marks,did not seat any further,i guess bullet is backing into case.i see some deeper seating by members here. are they using more neck tension?i did this test to feel seating at different depths.and look at rifling marks.just had to ask !!

 

[jcampbellsmith]

Doc
I'm not sure what your question is? Your numbers seem a little strange and there are no decimal points. What units of measure are you using?
Regards JCS

 

[RDavies]

Did you mean 0.0015" neck tension and 0.010", 0.015", 0.020" bullet jam into lands?
If so, then, yes your neck tension will be too light to jam more than .020" into the lands and you will be "soft seating" the bullets, which is fairly common with the 115s.

If your measurements were .001", .002" etc, you are not changing seating depth enough.