Hello all - just got a Dillon RL550b, and set it up to load 9mm last night for the first time. Loaded about 30 rounds just to check things out. Through that process I had a few questions I am hoping you can help with.
A few details that may come into play - RCBS dies, Remington 124 gr FMJ bullets, Win231 powder, 1.150 OAL.
1. I loaded 30 rounds of 9 mm, but when I checked the reloads in the Dillon case gage I found that 6 of them would not fit. Near the bottom of the case its swollen slightly, and binds in the gage. I checked the resizing die and its seated all the way down to the base plate. The csae swell is almost imperceptible, but just enough to bind. My question is, is it possible to determine this before loading, so as not to have to take the bullets apart? The only thing I could come up with was resizing and depriming all of the cases, but not putting in new primers, and checking cases in the gage before proceeding through the process. This way I can weed out the bad cases before completing the loading process. Any thoughts?
2. Do you leave powder in the powder cylinder (how long?), or remove it after each loading session? The powder cylinder doesn't appear easy to empty.
3. What's the best way, and recommended frequency for checking powder charge? When I set it up I had just one case in place and charged it about 10 times over and over to confirm that right charge. Once you get rolling though, you have to be real careful about keeping things in sequence. About the best I could come up with was when I am ready to check powder charge, I just don't load a new case in stage 1, and use the last case to check the charge. This way I can remove and check the charge, and reinsert it in stage 2 if all is well, insert a new case in stage 1, and keep rolling.
4. What kind of variation in powder charge is normal. I am loading 4.2 gr, and noticed that there might be a variation of 0.1 - 0.2 at times (using a Brian Enos digital scale - the $75 one). From prior loading I found my XD9 doesn't cycle completely at 4.1, so went up to 4.2, but if there is a 0.2 possible variation I may want to go up to 4.3 or 4.4 to prevent cycling problems.
Last thing - I learned how NOT to change the primer tube. If it doesn't go all the way down to where its supposed to go, you pour primers in the top, and they pretty much run uncontrollably out the bottom. Picking up 100 primers is NOT fun. Learning moment - when changing primer tubes make sure you see the little plastic tip just above the spring loaded retainer, or you'll be picking up primers forever!
THanks for any and all input. I enjoy loading and shooting, and look forward to loading with more confidence. Best to all..