Stuck looking for the Breaching Barrel in the Powder and Steel mission in Flintlock: The Siege of Dawn? Me too. But fear not, because I'll explain where to find it.
Flintlock: The Siege of Dawn – Factory Break-in | Barrel Location | Gunpowder and Steel Gameplay
So to reach the Breaching Barrel and proceed, you’ll first need to find and activate the Enki rift travel skulls scattered around the area. Luckily, these are pretty easy to find, so clear the area of any pesky birds and archers and activate them if you haven’t already. The rift travel skulls and powder barrel are both located in the area pictured below, so thankfully you don’t have far to go.
You'll first need to jump to the Rift at the Watchtower and from there find the next travel rift, which is directly across from the Watchtower. You can't get to it directly, so you'll need to powder dash from the Watchtower Rift to close the gap and get close enough to zip to the next rift.
When you reach the canyon and see the hanging platform, look straight up before you start powder jumping. Where you aim will partly determine how and where you go when you exit a canyon, and you won’t get enough height if you just jump straight out.