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Posted: 9/14/2016 9:34:20 PM EDT
| I'm new to the 550B, I'm seeing primers in 9 and 223 not seat as deep as when I hand primed before. After checking a run I've had to go back to the hand prime tool to get them where I'm happy. While I see a mechanical advantage on the downstroke I'm not seeing it on the priming end, thoughts? |
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hmmm
something isn't setup properly remove the case, remove the primer, remove the powder funnel rod, or, hell, the entire toolhead. now look at how far upward the primer could seat is it better ? check to see if the black rod that attaches to the powder funnel assembly isn't adjusted too tight. "97000 Failsafe Rod" there's a blue plastic wingnut at the bottom, make sure it's not too tight. with a correctly primed case in station 1, the spring should be about 1/2 way compressed. 
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I've had some of the same issues myself. I picked up the Dillon Swager thinking maybe my RCBS Swager wasn't working well enough. I finally measured my primer pockets and my 2-3 x fired LC brass had primer pockets measured at .117. The bare minimum. Maximum is .123. I measured my CCI 400 primers and they are .119. If I hand prime, I can just barely get them below. On the Dillon, they are too close to flush. I have a primer pocket uniformer on the way...
Before that, I made sure there was no resistance pushing forward. I had a minor hang up and loosened the primer seater set screw while pushing forward. After centering/wiggling it into position I no longer had a hangup. Also make sure your shell plate doesn't have any rocking play in it. |
| I've adjusted the shell plate to where there's no slop and it still turns without feeling like its binding. All this brass has been reloaded multiple times with the same brands of primers so it's not that. Next run I'll put a little extra emphasis on that step, still I think hand priming with either the Sinclair tool or RCBS universal gives better results. Thanks |
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Quoted:
I've adjusted the shell plate to where there's no slop and it still turns without feeling like its binding. All this brass has been reloaded multiple times with the same brands of primers so it's not that. Next run I'll put a little extra emphasis on that step, still I think hand priming with either the Sinclair tool or RCBS universal gives better results. Thanks you don't need to waste time with hand priming ...you need to adjust your 550, or technique to prime correctly efficiency is the reason for progressive maybe call Dillon tech support and talk to them |
| Measure your primer pockets. The range is .117 - .123 for small rifle/pistol. Then measure your primers top to bottom. My less fired brass measures with deeper pockets. On your press you should be able to see your primer seating stem can go plenty deep... You can squash your primers by hand (I've done most brass by hand) or you can take a few moments and see if your primer pockets are getting shallower. I didn't think mine were until I measured. And once I saw they were shallow I began going through different batches. Measurements are objective. |
| Look in the manual and study the parts and adjusting technique for the primer assembly and make sure the primer seater plug is correctly installed/adjusted. The punch has a slot where the locking screw holds it in place. The plug can be pushed down too far, which means it can be locked in such a manner that you don't get full seating length. |
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