Gonna' have to swim against the current here, guys. After struggling with a 30 BR in IBS Score for three seasons, I went back to a PPC last year. BAT in a Bruno/McMillan stock, Krieger 1-13.5" twist, Jewell trigger, Leup 45X Comp. Bought 24 pounds of Lot #6 and Lot #10 of LT-32 and 1K Berger 65 Columns, 500 Bart's 66 Ultra's and 1.5K of Bart's 68 Ultras. I lit the powder with '09 vintage Wolf SR mag primers. Used anywhere from 27.8 to 29.3 gr. Velocities ran from about 3320' to 3450' per sec.
Sometimes it shot the lights out - other times it was difficult to keep them in the 10 ring. It took me a while to realize that when it was either cool (or cold) and dry, or warm and dry, it shot very well. But if it was cool (or cold) and damp, or warm and damp (or humid), it had a lot of variability. Here in New England most mornings the humidity is quite high, while in the afternoon it can be in the 30% range. That load that worked so well on a warm, dry Wed afternoon, shot just miserably Sunday morning when it was 50 degrees with 80% humidity.
I also found it to be very dirty burning compared to N133, vintage 2015 BR, and the new XMR 8208. I believe it burns dirty because of the amount of deterrent coating on it. With such tiny grains it has a lot of coating to keep it from burning too fast. That also may account for the moisture related effects I experienced with it. Maybe the heavy coating attracts more moisture than other powders, thus affecting the way it burns. Can't say for sure but it makes sense(?).
I've noticed that many southwest and western Group Shooters use LT32, while here in the east hardly any. Check the equipment list on the recent southern 3 day group shoot. Out of a couple of dozen plus competitors only 2-3 used LT32. Most used 133 and a few 8208.
For-what-it'-worth my advice is not to load up on it. Buy or bum a little from someone and try it under both damp and dry conditions. You might also want to buy a pound of XMR 8208. You'll find the 8208 about a grain and a half "slower" (burning) than LT, but it is very consistent. I shoot the same load from 50 to 80 degrees, and it is unaffected by moisture.
One poster mentioned using LT30 in a PPC. I haven't tried that so I can't say whether it works well, or not.
My LT32? Have 17# for sale. I'll have it at the IBS Score Nationals being held in Augusta, Maine, on the 22-23rd of this month. Good luck with your program.
Zdog (that's Zee-dog! Chris Mitchell)