Re-zeroing

[Vern Ong]

Yesterday I was re-zeroing my rifle with an ACOG/RMR combo and I think I might be overthinking it a bit. Before I finalize everything, what 0 distances are yall using for the top dot?

 

[Brucer41]

With the combo you have, go for 50 yards. This about normal for most setups. I use this as a "rule" of thumb, and it is usually darn near perfect. Are you setting the ACOG at 100 yards? What rifle/barrel length are you using?
At the typical distances:

• 0–10 yd: hold low ~3.5–4"
• 25 yd: hold low ~1.5–2"
• 50 yd: dead on
• 75–100 yd: ~1–2" high