日本語 Japanese Ask Questions Thread 4

If you have a question about the language, ask it and fellow 4channers might see it and answer it for you.


Japanese Ask Questions Thread2
http://dis.4chan.org/read/lang/1206158123/1-40

Japanese Ask Questions Thread3
http://dis.4chan.org/read/lang/1267485093/1-40

OK, so. I've been doing some translating of a Japanese RPG, and I've come across the following set of characters that seem to have similar translations to my (fairly ignorant) eye, and would like to have a second opinion.

The characters that I'm having trouble with are 打撃 and 衝撃. They are both translating as "blow" (as in attacking someone), but I want to make sure that I'm as accurate as possible. Thanks!