thanks for the tips, I've been on probation and if it is true that having more effective revolution overdrive, it just updated, regarding Seasoned Marksman is a good skill but I opted for give me more for the simple reason of survival makes Raynor is more in the battlefield fighting without retrieving life constantly

I think this build is fine - if not ideal for auto-attacking Raynor. I like Groundzero996's suggestion of Revolution Overdrive to help you chase, and therefore, get more auto attacks in. Hamstring shot, while great for a slow, may incentive initiating with Penetrating Round which would push the enemy away and therefore, limit your auto-attacks (unless you penetrating Round them from behind toward your team, in which case, a slow is not as effective). I don't think Seasoned Marksman is what you want, quoting Reddit user mackejn, "Maximizing the efficiency of the talent definitely runs counter to the deathball playstyle of HotS".

The build is quite passive and safe since you basically just Penetrating Round with Hamstring Shot to slow a hero, then wail on them with Berserk auto-attacks gaining life from Vampiric Assault and having a boosted Adrenaline Rush to provide sustain. This toolkit is fine but doesn't compensate for heroes with high burst that counteract your healing, or those who can disable you outright. Still, I like the simplicity of this build and its DPS should not be underestimated.

Why would you miss out on Seasoned Marksman? What about Revolution Overdrive? Both seem like critical piece of Raynor's kit. Marksman can make his DPS insane and Revolution overdrive can let you chase after kills or run away, especially when you're grouped up.