Yes it does answer part of your question. If you use crappy bbs in any rifle accuracy will be crappy. You need to tell us what you plan on using. You need to be more specific with your question.
Besides that, let me tell you that with any stock rifle, you are not going to be seeing amazing headshots from 100 yards away. It takes time and effort to get a rifle to be great. Such as DIY mods, and expensive upgrades. That might not answer your question, but judging the way you asked the question, you may want the answer to be "O you will be able to shoot really far! And so accurately too!" Sorry but that will not happen quickly.
Also, you have asked numerous questions regarding various rifles. I suggest going to each thread about particular rifles and reading up on them. There is a load of information there for you. Use it to your advantage.
Besides that, let me tell you that with any stock rifle, you are not going to be seeing amazing headshots from 100 yards away. It takes time and effort to get a rifle to be great. Such as DIY mods, and expensive upgrades. That might not answer your question, but judging the way you asked the question, you may want the answer to be "O you will be able to shoot really far! And so accurately too!" Sorry but that will not happen quickly.
Also, you have asked numerous questions regarding various rifles. I suggest going to each thread about particular rifles and reading up on them. There is a load of information there for you. Use it to your advantage.