Lei Heng was a blacksmith, but the book didn't say that he had received formal martial arts training. His weapon is a ju, as you can know from Wu Yong's words. Wu Yong said that he was a master of Ju 'an, but Wu Yong was a scholar and didn't know martial arts, so his evaluation of a person's martial arts level was of no reference value, and when Wu Yong said this, he had not left Yuncheng County or left.
In addition to the battle between Lei Heng and Liu Tang, there are two records in the book. One is Bi Sheng, and the battle is difficult to explain. Because Bi Sheng didn't fight with people and had no reference, it was impossible to judge his real strength, but anyway, Lei Heng won the battle.
The second time was with Si, the curtain call battle of Lei Heng. Thirty rounds later, Lei Heng was beheaded by the company. This is also the only one in Liangshan who was beheaded by his opponent without any ambush, which shows that Lei Heng's strength is really not so good.
So it's not surprising that Liu Tang can play fifty rounds with him. In fact, if Classical didn't arrive in time, Liu Tang should be able to defeat Lei Heng. We can look at the state of two people fighting first. At this time, Liu Tang was arrested by Lei Heng, hung all night, and then put it down, while Lei Heng was at the classical home, eating and drinking all night. It can be said that this period of time is full of food and drink.
And Lei Heng is still working hard at home. Behind him, there is a group of people behind him, and Lei Heng is a stranger, fighting alone. So no matter how you look at it, Lei Heng has an advantage in this battle, but under such circumstances, Lei Heng still can't beat Liu Tang, and even falls behind. Can only say that Lei Heng's martial arts is really inferior to Liu Tang's.