3-Gun Rifle Sights Question
I'm looking to get an Eotech sight for my AR. In narrowing it down to two models I noticed one mentioned in the description that it has only a 1 MOA dot and is suitable for 3-gun service rifle competition. The other model has a 1 MOA dot surrounded by a 65 MOA sight circle. The latter description does not mention use in 3-gun. Just curious if someone can inform as to whether there is a difference in the two regarding use in a service rifle competition. Can there just be a single dot for these competitions? For reference the models are 511.D1 EOTech and 511.a65/1.