Jski......Only have experience with the T7. Started out reloading on a humble Lee 50th Anniversary single stage reloading kit many, many rounds ago. In fact, I still use the Lee for depriming and sizing as I've yet to find anything faster than the Lee Safety Prime tray to reload with primers.
Decided I wanted another press that was dedicated to the .357 full time so shopped around and ended up bringing the T7 home based on the OVERWHELMING amount of positive feedback I found on various websites. I also wanted a press that gave me a little more control/hands on over each step of the process and allowed me to stop when I chose to do whatever it was I wanted to do with less complexity of a progressive. It's built like a tank. I'll never wear it out. Has the feel of quality with each movement of the handle. I LIKE using this press for that reason alone.
About the flex. It's negligible at best. I don't notice it (not even sure it's there), and I don't worry about it. But then I don't shoot competitive long range/benchrest etc. I use it for straight walled revolver rounds exclusively so it's a non-issue for me.
I like the T7 so much that while shopping at a big box sporting goods store I saw one at a ridiculous price which made it impossible for me to walk away from and so I bought it and brought home a sibling for the older brother. That press is not dedicated to a caliber and routinely see's .44 mag, .45 Colt dies etc.
This press is shown in the pic below just after I set it up today for a large run of .327 Fed Mag/120 grain hard-cast GC's. I'm getting to start that this weekend (now that I have the time in quarantine).
I don't hard mount them and use the clamps to keep them in place allowing me to open the bench up for other projects when additional space is required.
Like ADKWoodsman above this post I use a Little Dandy on the press to drop the powder. What I like about this set up is it's VERY consistent in it's drops. The movement of the turret head back and forth ensures the power settles and there are no voids in the column. It's easy to see the powder level drop in the see-through tube, especially with larger charges. I check every 10th round and even with larger powders (like Unique) the most I'm off is 2/10th's of a grain and always less than that with smaller powders.
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For Christmas 2-3 years back my mother-in-law sewed me the cover's with patches I picked up in Ireland a while back. Keeps them clean and dust free when not in use.
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