My old style plastic "universal" RCBS reloading blocks are good for pistol bullets, but they fall over easily when I try to use them to hold the .30-30 cases. So I found a relatively easy and cheap solution for some specialized, taller blocks for the .270, .30-30, and .30-06 loads.
Cost for new blocks - around $5.00 to $7.00 each
Cost for Frankford Arsenal #209 Gray plastic .243-.305 ammo cases:
20-rounds each case, 10 boxes $19.95 - that's $2.00 for one.
I glued one box, with its two halves side-by-side. I add powder to 20 shells at a time to avoid errors, so it is easy to hold the box up to the powder dispenser and then set it down. The top adds to the base width and can double as a bin for bad brass or what-not while loading.
I like the size of the block, as it stores quite easily in the rather diminutive size of my humble reloading area.

Super Glue won't work with this particular plastic; it just pulls apart. I used a 5-minute binary epoxy that applies from a dual tube syringe, so it took only a couple of seconds for the whole project - gluing, setting with a clamp (on non-porous material, of course, but not our rug!). Then, 5 minutes later I was good to go.
Now for those who are not as clever and handy as I am, here is a step-by-step instruction:
1) Don't use Super Glue. I already tried that for you - it does not work.
Use an epoxy glue that works on polycarbonate, whatever that is.
2) Open the single box before applying the glue
3) Apply the glue to the to side of each half and don't forget to mix it with a toothpick or somethin'
4) Remove the clamp before you use your block.
5) If you get the glue on your finger, don't lick it off with your tongue,
or you'll end up talking funny and people will laugh at you because your
hand is stuck in your mouth.

