Anyone any experience with their old army shooting low? Iv got the 51/2" barrelled one with fixed sights so theres no adjustment to play with. Have tried increasing and lowering the powder charge with no real improvement settling on 18grns of swiss which is comfortable to shoot and holds a nice group all be it about 6" lower than i would like. "Group" being reletive to my shooting ability. An experienced friend recommends filing a bit off the front sight which makes sense but wondered if anyone on this forum had had the same problem. Tim