Quick Load shows Accurate LRT (as opposed to now under Ramshot LRT) to have a burn rate of around .28.
It seems to be slower than N570, which in my last batches has a back calculated burn rate actual of about .31 though quick load says it can be as low as .277.
Retumbo is about .337
Ramshot Magnum .345
Reloader 26 .3397
Reloader 33 .2670
So, on a relative basis, according to quickload its sort of close to bothe Reloader 33 and N570, but any 1 batch or lot of powder can vary 5-10% on burn rate from what they publish...... But its in this neighborhood. Its definitely slower than Retumbo and Magnum
and RL-26... I heard one fellow say in another forum he thought it acted like black tar on the order of US869.