4n2t0 Posted April 9, 2017 Share Posted April 9, 2017 (edited) I'm a reader, not a poster, but something's got me baffled. I recently loaded a bunch of CamPro 147gr RNFP and the RN seating stem in the Dillon die gave me a more consistent OAL. I was sure that the SWC stem would provide a more consistent OAL since it presses flat against the nose of the projectile but that theory didn't play out. Any thoughts as to why? Brass: Winchester OAL: 1.125 Edited April 9, 2017 by 4n2t0 Link to comment Share on other sites More sharing options...
texasref Posted April 9, 2017 Share Posted April 9, 2017 The RN seating stem matches the ogive of the bullet and gives you evenly distributed pressure when seating. A little variation is to be expected and is normally not an issue. Link to comment Share on other sites More sharing options...
4n2t0 Posted April 9, 2017 Author Share Posted April 9, 2017 (edited) 4 hours ago, texasref said: The RN seating stem matches the ogive of the bullet and gives you evenly distributed pressure when seating. A little variation is to be expected and is normally not an issue. Yeah, I'm just surprised that the SWC stem couldn't match the consistency of the RN stem. Do FP meplat's generally have a slope that's unseen to the eye? Edited April 9, 2017 by 4n2t0 Link to comment Share on other sites More sharing options...
NWfront Posted April 9, 2017 Share Posted April 9, 2017 I've found that at least with my square deal the SWC stem has only worked well with HP's. Most of the FP profiles I've used look basically like a RN with the tip cut off and fit that die much better. Link to comment Share on other sites More sharing options...
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