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Dillon 650 vs 750
- Thread starter milktree
- Start date
DarrenL
NES Member
Anyone who has used a 650 and them moved to a 750 have any comments? I am debating selling my 650 since I cannot get it to work anymore, and replacing it with a 750 or a LNL AP. most, but not all of my issues are primer station related.
Have you tried sending the 650 back to Dillon to have them fix it?
yanquidog
NES Member
I just did this last month. (550) Primers not dropping correctly, stacking up in the cup , etc.
3weeks and $80 later, they sent me back a like new machine. Even replaced a broken plastic powder tube.
For the 650, it costs $ 120.
SJan
NES Member
I do prefer the 750 primer system. Its not completely without its own unique problems though. There is no performance or reliability increase when going from a 650 to 750, arguably there is an extra safety measure though (650 has exposed primers in the carousel) Like already said, I would send the 650 to Dillon for an overhaul.
allen-1
NES Member
I have 2 650s and do not have primer feeding issues. There is an alignment tool for the primer setup; perhaps that would help. I wouldn't give up on your 650, I've loaded tens of thousands of rounds, if not more, with no serious issues. I've had minor ones, and as I've used it, I've learned more, learned how to diagnose and correct them.
SJan
NES Member
The index arm spring (11) wears quickly or even breaks - about 10k rounds is probably the most I got out of one, under 1k for the least.
The relationship of the Disc (15) and the index arm (6) wear and produce occasional and difficult to diagnose disc advancement. You can flip the disc every maintenance cycle to extend its life. Somewhere around 100-150k expect wear on the disk pin (4) and the housing (12) to make it impossible to get consistent primer alignment. Wear of the press platform can also cause shelplate index alignment and primer system alignment problems. If you describe your problems and what you have tried to Dillon they will may send an entire new primer system, they may suggest a rebuild, or they will send nickle and dime parts. It depends on who you get on the phone and their mood that day. If you are in the 100k+ rounds loaded club, send the whole press in.
The relationship of the Disc (15) and the index arm (6) wear and produce occasional and difficult to diagnose disc advancement. You can flip the disc every maintenance cycle to extend its life. Somewhere around 100-150k expect wear on the disk pin (4) and the housing (12) to make it impossible to get consistent primer alignment. Wear of the press platform can also cause shelplate index alignment and primer system alignment problems. If you describe your problems and what you have tried to Dillon they will may send an entire new primer system, they may suggest a rebuild, or they will send nickle and dime parts. It depends on who you get on the phone and their mood that day. If you are in the 100k+ rounds loaded club, send the whole press in.
i would put it this way - there are several things that 750 has got improved/resolved, so if buying from scratch - 750 is the better way to go, for sure.
as you already have a 650 - i think it would be worth it to try to get them repair it properly, if it is only $120 indeed. the incremental level of improvements in 750 compared to 650 is probably not worth the full 750 price.
i presume dillon does not offer the upgrade/buy back path? yeah, probably a silly thing to even mention.
dcmdon
NES Member
The 650 and 750 have a lot of things that can get out of synch. One thing that I did to help with primer feeding was tape a 9mm bullet to the top of the primer feed follower rod. That slight bit of weight helps to keep primer feeding reliable if the feed tube gets a little scuzzy. Otherwise it takes 1 minute to remove the tube and spritz it with brake cleaner before reinstalling.
I actually bought my 550 about 10 years after I bought my first 650. The 550 is dream. I now understand why DP says its the most versatile reloader you can buy. I use it with one case at a time on the shell holder to load precision rifle cartridges and it makes rounds with no more runout or standard deviation in MV than a single stage press. While being much faster. Even if I measure every charge.
I also reload my moderate volume stuff on it. .45 acp, .357 mag, .44 mag. Etc.
I actually bought my 550 about 10 years after I bought my first 650. The 550 is dream. I now understand why DP says its the most versatile reloader you can buy. I use it with one case at a time on the shell holder to load precision rifle cartridges and it makes rounds with no more runout or standard deviation in MV than a single stage press. While being much faster. Even if I measure every charge.
I also reload my moderate volume stuff on it. .45 acp, .357 mag, .44 mag. Etc.
DarrenL
NES Member
A fellow action pistol shooter offered to fix it, and found that the shellplate setscrew (the one on the main shaft) was off, the primer disc had some galling, and the RCBS powder lock out die was acting funny. So he sorted those out and lubricated the thing. Hopefully that resolves things, if not, I'll send it in.
