FarmerboyMT,
I have shot a ton of OTBC bullets and have several thousand on hand. The first bullet that I tied from them was the 165-170 grain bevel based 30 caliber bullet.
It is terrible, but their 170 grain that requires a gas check is very suitable.
The 165 grainer would tumble when shot from 4 different barrels at low and medium velocity. It would shoot a 6 foot group at 100 yards.
If your don't have gas checking tools, Lee Reloading makes a "Sizing Die" that goes on your regular reloading press and it will seat the gas check all in one stroke. The bullets don't really need sizing, but you need the gas check. I use Hornady checks mostly because they are about $5.00 a thousand cheaper than the ones sold by RCBS and Lyman. Hornady makes them all.
Some of the bases on the OTBC 30 caliber bullets are a little too large in diameter for the gas check to slip on and the gas check needs to be expanded slightly by hand. I have taken carriage bolts and with a grinding wheel ground them into the shape I want to perfectly open the check mouth slightly.
I have shot OTBC bullets below"
44 240 grain
44 300 grain
38 RN 158 gran
38 RNFP 158 grain
380 95 grain RN
32 170 grain Bevel Base for 32 Winchester Special - shoots great
I buy the above bullets at no less than a thousand at a time.
The 30 calibers run about $51/1000 delivered to my door. Don't buy off of their web page as the prices are much higher. I telephone and tell them what I want to pay and see if they go for it.
Harold Clark