Yes its very similar. The furthest range that you can make a hit gets attached to the letters PBR so the 23 yard PBR means you can aim dead on from zero to 23 yards with out holding over the deer's boiler room. Picture a 6 inch tube from your bow to the deer. The maxium point blank range is the distance the arrow will travel and still be in the six inch tube. With my 300 I can shoot from point blank to 325 yard, aim dead on the boiler room and still get a good hit. With in that 32 yards the arrow will travel no more than 3 inches above the point of aim and no more than 3 inches below the point of aim. Heres another way to look at it. Draw three lines from the bow to the deer. The center one is from the arrow tip to a six inch circle 23 yards away. The second line is 3 inches above the first line and the third line is 3 inches below the first line. If you have a 23 yard PBR (acutally called the maximum point blank range) then your arrow will not go above the top line or below the lower line up to 23 yards. Clear as mud? LOL. A drawing is better. If you still do not understand I will see if I can find one I can send you. The maximum point blank range is the best way to sight in a rifle. I have sighted in my 300 so that if i see a deer(which has 6 inch vitals) I aim dead on for up to 325 yards. This info is in reloading manuals but I have yet to see the info published for arrows.