Use gun infantry, and the gun cavalry dies very quickly. Sakai clan marksmen are insanely good. You can also get the hokuriku gun monks which cost almost nothing in upkeep. If you have the money, make an army out of nothing but Tokai Hatamoto Teppo and you have ridiculously good ranged AND melee at the same time. Cavalry effectiveness actually goes down the larger the battle in my experience, I was having trouble killing cavalry until I was able to actually fully deploy all my ranged infantry, then their entire cav line got taken out in one volley.

I managed to use both gun infantry and Gunner Calvary to wipe out their Calvary first and use the Gunner Calvary to use feign retreat on them plus the Calvary with spears to round up the stranglers

Originally posted by {Δ} Achilles:

Use gun infantry, and the gun cavalry dies very quickly. Sakai clan marksmen are insanely good. You can also get the hokuriku gun monks which cost almost nothing in upkeep. If you have the money, make an army out of nothing but Tokai Hatamoto Teppo and you have ridiculously good ranged AND melee at the same time. Cavalry effectiveness actually goes down the larger the battle in my experience, I was having trouble killing cavalry until I was able to actually fully deploy all my ranged infantry, then their entire cav line got taken out in one volley.

This.

I'm trying this out myself, but which are the best gunner cavalry and gunner infantry?

Sakai Pistol Cavalry and Sakai Samurai Marksmen respectively.