Title said it all.
I started to love bombing when either in solo mode or a party mode because i rarely get hit than a gunner and my bomb does effect them even if i go afk after placing a bomb on the location.
In case the title making you any confusion.
What i meant was does swift strike buckler bonus affect on bomb or just sword and gun?o.O
If so what shield so i get then as a bomber?xD
Swiftstrike Buckler allows Attack Speed Increase: High to be applied to all weapons. However, Bomb is highly unaffected by this increase: All the increase does is decrease the amount of time it takes to bring up another bomb. (Try spamming [attack] and you'll see what I mean. It's not very useful.)
The shield you choose as a bomber is based highly on your situation. Unlike Sword-users (Barbarous Thorn Shield/Swiftstrike Buckler) and Gunner-users, (Swiftstrike Buckler) Bombers have no unique stat-boosting shields. So you'd probably want something that has resistance to status effects that causes problems for your charge such as Shock and Fire.