Drmike Posted November 27, 2020 Share Posted November 27, 2020 (edited) I have had a Dillon RL 1100 with Ammobot Rev 3 for about a year now that I use for 40SW. I am getting tired of constantly replacing bent index bolts from primer drawback as well as various primer issues. The Ammobot doesn’t seem to be able to sense the extra tension and stop itself. I actually buy the bolts by the dozen and replace 2 or three per 1000 rods loaded. I have an XL650 that I use for 9mm and have had a few problems, but not many. It is 25yrs old. Now I have ordered a Mark VII Pro to load 9mm (pulling the handle messes up my tennis elbow). I have yet to receive it, but now I am wondering ...... should I keep the 40SW Ammobot driven RL1100? Should I sell the Ammobot and buy a Mark 7 to drive my RL1100? Should I sell the Ammobot/RL1100 combination and buy another Mark 7 Pro for 40? Edited November 27, 2020 by Drmike Typo Link to comment Share on other sites More sharing options...
dansedgli Posted November 27, 2020 Share Posted November 27, 2020 Which bolts are you breaking? Is that an ammobot part or Dillon part? I've loaded 9000 rounds this week and have only lost a few decapping pins on cases that havent seated correctly in the shellplate. 1050 with a mk7 pro. Link to comment Share on other sites More sharing options...
Drmike Posted November 27, 2020 Author Share Posted November 27, 2020 (edited) I lose decapping pins too. That is not an issue to me, unavoidable. The bolt that I break is the one that drives the index pawl at the back of the machine. The problem seems to be that the Ammobot cannot detect the tension in the upstroke caused by a primer extending from the bottom of the case which results in too much torque on this bolt which bends it slightly, causing poor indexing unless replaced. Edited November 27, 2020 by Drmike Typo Link to comment Share on other sites More sharing options...
dansedgli Posted November 27, 2020 Share Posted November 27, 2020 Oh I understand now. I cant offer any advice sorry. Ive never had a problem with that bolt. Link to comment Share on other sites More sharing options...
oteroman Posted November 27, 2020 Share Posted November 27, 2020 Pre process your brass is the answer if you are running an automated press. Link to comment Share on other sites More sharing options...
Drmike Posted November 27, 2020 Author Share Posted November 27, 2020 That seems like more work than pulling the handle! Link to comment Share on other sites More sharing options...
cool Posted November 27, 2020 Share Posted November 27, 2020 The solution also automates the process Link to comment Share on other sites More sharing options...
ddc Posted November 29, 2020 Share Posted November 29, 2020 I'm curious... is there something different between 40S&W and 9mm processin that would result in excessive primer draw back for the 40S&W? I'm running an Ammobot Rev 3 on an 1100 for 9mm and drawback is not a problem. If you want to sell the 1100/Ammobot let me know; I'm interested. Link to comment Share on other sites More sharing options...
oteroman Posted November 29, 2020 Share Posted November 29, 2020 The procedure is the same. The profile on the decapping pins (comparing 9mm to 40cal. ) can be what your experiencing. If you are not aware, putting a 45 degree(ish) profile does help with primer pullback. The other HUGE influence is how the brass was cleaned. If it was wet tumbled and the drying process was not quick and thorough. Not sure of the correct term (rust like oxidation) can cause broken decapping pins, and primer pullback. If your automated you learn quick how to solve these problems. Once you push that start button jams will ruin your productivity big time. Good luck. Link to comment Share on other sites More sharing options...
Drmike Posted November 30, 2020 Author Share Posted November 30, 2020 Ok, yesterday I decided to try preprocessing instead. I set up my other toolhead with a FW arms decapper (the new spring loaded one is awesome)and swage backup die as well as judge die and Redding sizing die and TNT munitions shellplate. I am able to run it reliably up to 3000cph, no issues with primer drawback with the FW Arms decapper, but still bending the bolts. I did a half a five gallon pail of brass yesterday and bent 6 bolts. I don't think there is too much tension on the shell plate, everything looks perfect. Very frustrated. The good thing about doing the separate processing is that there is no mess with a jam. Link to comment Share on other sites More sharing options...
Drmike Posted November 30, 2020 Author Share Posted November 30, 2020 I am wet tumbling with Brass Juice, then drying with a dedicated unit. I am also lubing when I process. Link to comment Share on other sites More sharing options...
Drmike Posted November 30, 2020 Author Share Posted November 30, 2020 DDC, this unit might be available for you in the new year, I am waiting on my Mark 7 to arrive, it ships next week. Only issue is that I am in Canada. Link to comment Share on other sites More sharing options...
ddc Posted November 30, 2020 Share Posted November 30, 2020 3 hours ago, Drmike said: Ok, yesterday I decided to try preprocessing instead. I set up my other toolhead with a FW arms decapper (the new spring loaded one is awesome)and swage backup die as well as judge die and Redding sizing die and TNT munitions shellplate. I am able to run it reliably up to 3000cph, no issues with primer drawback with the FW Arms decapper, but still bending the bolts. I did a half a five gallon pail of brass yesterday and bent 6 bolts. I don't think there is too much tension on the shell plate, everything looks perfect. Very frustrated. The good thing about doing the separate processing is that there is no mess with a jam. I don't run mine that fast, right at 1500 cph. I have roughly 15K rounds through it. Haven't bent that bolt yet, knock on wood... Have you posted this over on the ammobot Facebook group? There is a lot of ammobot and dillon 1050/1100 knowledge over there. Link to comment Share on other sites More sharing options...
Drmike Posted November 30, 2020 Author Share Posted November 30, 2020 I will try that. Link to comment Share on other sites More sharing options...
Hooked Posted November 30, 2020 Share Posted November 30, 2020 I don't own an 1100, but I seem to recall something on the Ammobot FB group a while back about bent pins. Link to comment Share on other sites More sharing options...
Sigarmsp226 Posted December 12, 2020 Share Posted December 12, 2020 (edited) Guys - Only one thought as I read this thread related to primer drawback - not sure if you were aware that Will at FW Arms just introduced a spring loaded decapping die called the Primer Popper that virtually eliminates all primer drawback...I am running one on my EVO and so far it has worked flawlessly. Just thought I would mention as he has the unit on sale right now with free priority shipping....Mark https://fwarms.com/shop/reloading/pre-order-fw-arms-primer-popper-auto-case-centering-decapper-deprimer/ Sorry Guys - I Just saw where Will posted in the description of this part that he just ran out of stock but will have more in stock next week (around 12/14) when he gets parts back from the plating company. Edited December 12, 2020 by Sigarmsp226 Spelling Link to comment Share on other sites More sharing options...
Drmike Posted December 12, 2020 Author Share Posted December 12, 2020 6 hours ago, Sigarmsp226 said: Guys - Only one thought as I read this thread related to primer drawback - not sure if you were aware that Will at FW Arms just introduced a spring loaded decapping die called the Primer Popper that virtually eliminates all primer drawback...I am running one on my EVO and so far it has worked flawlessly. Just thought I would mention as he has the unit on sale right now with free priority shipping....Mark https://fwarms.com/shop/reloading/pre-order-fw-arms-primer-popper-auto-case-centering-decapper-deprimer/ Sorry Guys - I Just saw where Will posted in the description of this part that he just ran out of stock but will have more in stock next week (around 12/14) when he gets parts back from the plating company. Link to comment Share on other sites More sharing options...
Drmike Posted December 12, 2020 Author Share Posted December 12, 2020 Yup, got it and love it. But with the Dillon, I have to process separately. Not one case of primer drawback in 10000 pieces of 40sw processed Link to comment Share on other sites More sharing options...
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