Ok, I'm late to the party, but I thought I'd weigh in anyway because, as a gun forum member, it is my solemn duty to weigh in with my opinion regardless of what else has already been said and whether I have anything new to add.
Anyway, rather than recommend specific models, I thought it'd be more helpful to describe a few criteria based on the OP's needs.
1. Since this is primarily a target/range gun, the first thing you want a full-sized gun with a long barrel (4.5" or more). It's actually not the barrel length that's important, but the sight radius - the longer it is from front to back, the more accurate you're going to be. 5" guns tend to be dedicated target pistols (such as the aforementioned Glock 34).
2. Weight is not a consideration for a range gun, so don't shy away from the heavy steel guns. Generally speaking, more weight = less recoil, and more rounds you can fire per session before you get tired. That is not to say you necessarily want a heavy gun - just that you shouldn't eliminate it from contention just because of the weight the way you would with a carry gun.
3. In terms of triggers, it generally goes in the direction of SAO==>Striker==>DA/SA==>DAO. While I prefer DA/SA or DAO guns for defense, the light consistent pull of a SAO or striker-fired action is probably more suitable for a pure range gun.
4. Ergonomics. Once you get past the minimum threshold of reliability (which practically all modern guns do), ergonomics are probably the single most important factor in any gun you buy. A gun that fits your hand properly will be more accurate, and recoil less, than a gun that doesn't. This is entirely subjective, so nobody can answer this for you except you, and the only way to tell is to handle a lot of different models (and, preferably, rent and shoot them to see how the recoil feels).
Getting back to the OP, the Glock 34 is an excellent range gun, but it's not the only option. For a lot of people (including myself), the ergonomics make it a chore to shoot for extended periods of time; don't ever buy a gun purely for the sake of the brand. Every gun will feel differently in your hands, and you want the one that fits best.
