I put these BB's in my beadlocks back in 2007ish and they worked great once I got the correct weight in there. I started with the chart I found on innovativebalancing.com. The old style MTR's took about 100g in each tire. But as I was playing with the weight, it seemed that they would work better if the BB's were a larger OD. I had already put the most dense BB's I could get at the time.
So with my old BB's fairly worn out I decided I would try something different this time and ordered more airsoft BB's; this time in a 8mm size (standard is 6mm) and in a .34g flavor. The new (to me) tires going on are again the old style MTR's, so I am hoping I can get them to balance with about the same weight.
In case you were wondering, I ordered from evike.com as their prices are pretty good. Sometimes their shipping isn't and this time I paid more for shipping than the BB's, but I figured it will be worth it to get a larger OD.
What started all this is I became friends with a machinist and asked him to fix some wallowed out holes in my beadlocks. I ordered some steel inserts from prestigewheel.com and he machined out my wheels and pressed them in. I am excited to have this done as now I have a steel on steel contact with the studs, lugs, and wheels. Should last a lot longer!
I should have more information in a couple weeks after I get all this stuff put together and on the bronco!
Someday I may even try these BB's in my trailer tires if I ever decide to break the tires off the wheels.