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.284 · December 28, 2009, 04:07 PM

I have a S&W 629 Classic 8 3/8" barrel 44 mag. I use RP brass, CCI 350 magnum large pistol primers, W296, and Sierra 210 gr JHC. Also, I use RCBS dies and data from the Sierra manual.

My question is this, The bullet has a crimp groove (canelure I believe is the correct terminology) and I noticed that the end of the case is just below the groove. Is this a problem? In order to crimp the case so that it is the middle of the groove I would have to seat the bullet about .010 deeper. Is that a problem? I use 26 grains of powder, am I going to change the pressure to a dangereous level by seating deeper?

I guess any info that I have asked about or hadn't thought of would be greatly appreciated.

December 28, 2009, 04:07 PM	#1
.284 Senior Member Join Date: July 8, 2009 Location: davison, michigan Posts: 665	Seating the bullet to the groove I have a S&W 629 Classic 8 3/8" barrel 44 mag. I use RP brass, CCI 350 magnum large pistol primers, W296, and Sierra 210 gr JHC. Also, I use RCBS dies and data from the Sierra manual. My question is this, The bullet has a crimp groove (canelure I believe is the correct terminology) and I noticed that the end of the case is just below the groove. Is this a problem? In order to crimp the case so that it is the middle of the groove I would have to seat the bullet about .010 deeper. Is that a problem? I use 26 grains of powder, am I going to change the pressure to a dangereous level by seating deeper? I guess any info that I have asked about or hadn't thought of would be greatly appreciated.