Twitchy

I emailed them via the official email since every time I call I'm 8th on the call waiting list. About 3 weeks ago I tried to get them to warranty a broken indexer return spring on a 1050 I bought about 3 months ago and they wouldn't warranty the part. I ended up ordering 3 and paying just as much in shipping as the parts. Good thing I did, because less than a weeks use and another one broke. I don't know if it was a faulty batch or what. I have a electronics repair shop that handles these types of things nearby that I'll take the trimmer to if Dillon doesn't want to get involved.

Any update on the rebuild? I just had a trimmer go crazy. The rod that slides onto and gets pinned into the motor shaft came loose. The pin was still in, but wallowed. This allowed bunch of movement and the brass got chewed up pretty bad. Weird thing is I would get 10 good pieces trimmed then 5 bad cases, rinse repeat. I pulled it apart and the bottom bearing was also seized. Kind of irritated as this is a 2 month old motor with less than 20 hours use with an hour on hour off duty cycle.

I haven't had any issues with my Lapua, LC or WCC using this for prep: Station 2: FL size/Decap Station 3: Swage Station 6: Trim/Size Simple as that. I only shoot these out of AR platforms, both for plinking and long range and my wife shoots them out of a R700. Her R700 and my 3 SPRish platforms shoot right at about .5 MOA. I don't crimp and only use 69 or 77 SMKs so maybe that's why I don't see the problem seating. I guess my process is similar to G29SF. Edit-I've never seen any issues with neck tension using this method.

I laughed my ass off at this. I've done something similar while tinkering on mine. For a while I thought the damn handle was mocking me, I want it up and it would drop a few inches, I want it down and it would index up

Try just using the FL sizing/decapper in in #2. Then back off the trim size die enough to only have it trim. I have very consistent results with that. You may also want to check the swaging die/rod to make sure it's not lifting or pushing down too much.

I used less lube on the next batch and didn't get any wallowed/belled base mouths. The variance is still there though. When I was getting .001" variance I was only running small batches of maybe 20-50 pieces and checking with a gage and caliper. The batch with .005" variance and belled/wallowed mouths had a liberal amount of lube applied as it was my first batch with my homemade lube. I didn't notice anything to indicate it was spinning, and even tried to put a finger between the shell plate and case to feel for spinning, but didn't have enough room between the die and shell plate. I've since learned less is more so to speak. I may try to let the trimmer warm up before I start and see if that makes a difference. BTW-I run the vacuum before I start the trimmer and leave it running after I shut the trimmer off. I cycle the trimmer a few times after I've completed trimming to get any brass shaving out that may have been stuck in there.

I got the trimmer/size die from Bradswarehouse, I wasn't aware of Whidden, but they look pretty similar. Can't speak to the quality difference though. The belling was only on this last batch. I've run probably a couple hundred testing before adding the universal deprimer and had no issues with belling or burring and they gauged good. I'll test some more later and see if I possibly put too much lube on. I just switched to a homemade mix of lanolin and alcohol, so I'm feeling out how much is necessary.

OK, So you're just running 5.56 full length brass into the trim/size die? In the grand scheme of things .005" isn't a huge variance, but I'm trying for better. I've just recently switched from a few single stage presses to these 1050's, so I'm a bit more meticulous about tolerances. I may need to let my long-range accuracy brass prep mind-set go a little bit. The only other thing that has me concerned is the wallowing and burrs I was getting on some. It was as if the case mouth was being expanded, but it was only happening after the trim/size die with the trimmer. (and not on all of them, just some) I'm now wondering if I had too much lube on and the case was spinning? Previously the trimming left a perfect edge on the mouth as you'd expect.

Yes. You are correct, I meant .001" variance. That would be awesome if it were that good.

I'm sure this has been beaten to death, but here goes. I processed about 50 pieces of 300 BLK brass I cut down via bandsaw and already had them de-primed from my other 1050 setup to process 5.56. With only the trim/size die and RT1200 mounted on my 2nd 1050 for 300 BLK, I was getting literally less than .001" variation. I used it to FL resize and trim, and that was it. Then I added a universal de-primer, so as not to over burden my other machine, and my variation went off the chart. I was getting .005"+ swings and burrs left on the case mouths with some looking like they had been wallowed out. Any ideas? I've seen people say the variation of different dies on the toolhead can affect pressure/effectiveness by offsetting the load on the trimmer. Any truth to this or was I just getting really lucky. I'll switch back to just the size/trim die tomorrow and see what happens. BTW, I had my machine shop clearance the toolhead to accept the 300BLK size/trim die and I'm cutting brass down with the bandsaw first, so I'm no abusing the RT1200. That's the last thing I want to do after spending the money on it. I just hope I can get back to the .001" variation by removing the universal de-primmer. Another thing mentioned in other threads was to tighten the case plate/indexer, but I generally had it setup to minimize vertical movement. I guess I should say I am trimming for 1.358" which is the middle ground for the cartridge, but I'm sort of OCD with this stuff and would rather have a tighter tolerance spread. Any thoughts? Thanks in advance guys. Edit to correct tolerance measurements.