How close to pinsir solo

Yay I've been wanting a Pinsir raid. Have you noticed any other new ones?

Your team looks more than capable

I set up a custom raid in Pokebattler. The results suggest that Pinsir is much harder than expected; Dragonite and Golem are too slow, even without dodging.

I don't think you're there yet. The flareons are probably the only ones on time in this team, they have a breakpoint at lvl 34.5 with 15 atk and it might be worth taking them there if you have the resources. Entei should be powered up, preferably to his breakpoint at 31.
I think the bug moves will be easier.

I don't think your team will make it. Pinsir is a hard raid boss with a high defense stat and only the Flareons in your team have sufficient DPS for the solo. 2300 Golems aren't any better.

If you can up your Entei to level 30 and maybe bring in another Flareon to replace a Dragonite, maybe.