Reddit mentions of Hornady B234 Lock-N-Load Comparator Body with Set of 6 Inserts

Frankford Arsenal powder trickler. Compact, nice heavy base for stability, even flow. I also have an RCBS trickler and hate it. It's not as stable and the dispensing arm thingy is a weird two piece design that never seem to flow well for me.
GemPro 250 digital scale. Do not waste your money on cheaper options. I don't have experience with the chargemaster type of scale. I like to do things manually.
Redding Imperial Sizing Die Wax. Best stuff there is. Works amazingly well. I also keep a lanolin/alcohol spray lube around for doing large batch work, but Imperial Sizing Wax does a better job.
Hornady Bullet Comparator set. You don't mention what cartridges you're reloading. THIS KIT DOES NOT INCLUDE 6.5mm. There's a 14 insert kit that includes more, or you can buy just the few inserts you need.
Frankford Arsenal bullet puller. I buy what's cheap. These don't last forever. All the hammering eventually cracks the plastic. I've tried several brands and they all break eventually. I usually keep two on hand.


So that covers what you already know you need. Here are some more recommendations.

Hornady 9th Edition. I use this more than all my other manuals combined. I shoot a lot of Hornady bullets, though. If you already have a favorite bullet brand, you should buy that brand's manual.

Lyman Shooters Check Weights. I use these every single time I reload. I like knowing that my scale isn't lying to me. Digital scales can be finicky sometimes! These are worth every penny.

Hornady Headspace Comparator set. This is a lot like the bullet comparator set, except that it measure to the shoulder of the case instead of the ogive of the bullet. If you're planning on monitoring the amount you're bumping your shoulders during resizing, this is what you need.

Lyman Case Prep Multi-Tool. The chamfer tool that came with your kit will do the job, but this Lyman multi tool is my preferred method. It also comes with primer pocket scrapers that will be useful, and primer pocket reamers you should throw away and never use.

RCBS Uniflow Powder Baffle. This will help your uniflow powder measure throw more consistent charges.

RCBS Advanced Powder Measure Stand. If you're going to do a permanent installation of your powder measure on your bench, you will want this stand. Its price is absurd, but it's a great stand.

RCBS Universal case loading block. Your kit came with one, but you need at least one more.

What is your plan for cleaning brass? Wet tumbling with steel pins is the way to go. I have the Frankford Arsenal unit. It's huge and noisy. If I had it to do over I would purchase the dual drum tumbler from Harbor Freight and buy steel pins from Amazon.

Redding dies don't come with shellholders. Did you remember to get one?

What is your plan for case trimming? You don't mention what you're reloading. The cheapest option, which is actually my preferred method, is the Lee case length gauge and shellholders with their cutter and lock studs.

There are some additional case prep tools, but they would depend on what you're doing. If you are dealing with brass that has military crimps, you'll need tools to deal with that. There are primer pocket brushes, primer pocket uniformers, flash hole deburring tools, and a million other little things.

That's all that's coming to mind right now. I'm sure I missed some stuff.

I would add:

Hornady's bullet comparator https://www.amazon.com/Hornady-Lock-Load-Comparator-Inserts/dp/B000PD5VLA - This allows you to measure seating depth off the ogive of the bullet, which is much more consistent than going off the tip of the bullet.

Hornady's overall length gauge https://www.amazon.com/Hornady-Overall-Length-Gauge-Curved/dp/B000PD6SD0/ref=pd_sim_200_2?_encoding=UTF8&pd_rd_i=B000PD6SD0&pd_rd_r=6K3666EQ4851J0R8AKHC&pd_rd_w=JBOSV&pd_rd_wg=kwjaE&psc=1&refRID=6K3666EQ4851J0R8AKHC & https://www.amazon.com/Hornady-Lock-Load-Winchester-Modified/dp/B000PD6RJA/ref=pd_lpo_200_tr_t_2?_encoding=UTF8&psc=1&refRID=2S9PEM17YKNN0J5WDMYK - This allows you to measure your gun's chamber, which is important for developing seating depth.

I like RCBS dies.

Beyond that, your list is complete. The only remaining suggestion I have is considering stepping up to a cast iron press. Strength = precision.

I use the Hornady Bullet Comparator tool which measures from base to the ogive depending on the caliber of the bullet. It would be nice if those measurements were provided by reloading companies. Specifically the hornady manual since the Comparator tool is a Hornady product.

When you say you're using the Hornady setup do you mean you're using the Hornady bullet comparator?

https://www.amazon.com/Hornady-Lock-Load-Comparator-Inserts/dp/B000PD5VLA/ref=sr_1_1?ie=UTF8&qid=1500007833&sr=8-1&keywords=hornady+bullet+comparator - Will allow you to measure seating depth off the ogive instead of the tip of the bullet.

https://www.amazon.com/Hornady-Overall-Length-Gauge-Curved/dp/B000PD6SD0/ref=sr_1_1?ie=UTF8&qid=1500007899&sr=8-1&keywords=hornady+oal & https://www.amazon.com/Hornady-Lock-Load-Winchester-Modified/dp/B000PD6RJA/ref=pd_sim_200_2?_encoding=UTF8&pd_rd_i=B000PD6RJA&pd_rd_r=ZMT2JK63QN42F4GB8EA6&pd_rd_w=Zd1Aq&pd_rd_wg=k2GtE&psc=1&refRID=ZMT2JK63QN42F4GB8EA6 - For measuring your chamber. You can do it the old fashioned way by seating a couple thousandths at a time, dropping the round in your chamber (barrel down) then turning the butt down...when the round falls free you have your maximum seating depth. The Hornady tool is a lot quicker and probably more precise.