I am very new (as in still haven't loaded my first round yet) to reloading. I think I have my machine set up properly and will start loading soon. Last night I was at Heartland in Edmond looking for bullets for .45ACP to load for my 1911. I was wanting to go cheap since these first runs are gonna be my training. They had two bags of non jacketed flat point bullets on the shelf. They had 454 200gr printed on the label. I know the 200gr is the weight but was wondering about the 454. The diameters of the bullets I see in my Lyman and Speers book is a .452 and .451. Can I use these 454's to load .45ACP? There was no period (.) before the number 454 on the bag, if that is important. The label read 454 200gr not .454 200gr.