I have one more question if you don’t mind guys. Is there any danger of “detonation” using these light loads in a 30-30 case? I know some people say this is a possible issue, and others say there is no such thing. Regardless, some powders are more position sensitive than others. Would using less than a half case full of Unique, 2400, or IMR4227 pose any problems in a light 30-30 load?
I'd like to discuss light weight bullets for .30-30s. Appropriately, most discussion of ammo for 336 (and relatives) focuses on 150, 160 and 170 gr rnds. I occasionally run across references to 180. But I'm also curious about light weight .30-30 bullets: 125, 110, 100, 85 and even 55 gr rnds...
We actually have a 32 page thread on just this topic. Click where it says "Lighter Bullets in 30-30".
With that being said, anyone that knows me, knows I shoot a lot of cast boolits, especially out of 30 calibers. For that reason, I keep a lot of non-position sensitive powders around that fill up a case at least half way, and don't need a filler. 2400, Accurate 5744, Unique, Red Dot, Blue Dot, RL7. If you stick with these powders, there isn't much you can't load in a reduced manner. Ed Harris also has some great literature as well as load data on this as well. Unfortunately I'm not in a position to help any further. Lightest I've gone in my thutty-thutty's is 165gr but the lee soup can bullet, which is close to a 30 carbine bullet, is on my list.