The Firing Line Forums - View Single Post - Can you sight in an AR15 in 5.56 with .22lr?

Robk · February 15, 2013, 04:13 PM

I understand that this is not the best way to do things. I have however looked briefly into the trajectory held by both of the rounds I intend to use.

.22lr CCI Minimag, 1 inch high at 50 yards

M193, 0 inch at 50 yards

If this does hold true, would it not make sense that if I print on center but 1 inch high, I should in theory be right on with the 5.56?

I will further look into this, check the provided link and do more trajectory searches for these 2 rounds.

I do thank everyone for the input. I do understand the overall thought expressed here. I do realize it would not be perfect, but what's the harm in giving it a go? worse case scenario, I will have more shooting time on the AR than it has even seen.

But of course, must wait for 2 things first. Non freezeing temperatures and even daylight to see what I am doing.

Thanks all so far.

P.S. Just checked out the link to the M4 forum, I get it. Thanks.

February 15, 2013, 04:13 PM	#7
Robk Senior Member Join Date: April 18, 2011 Location: Rhode Island Posts: 324	I understand that this is not the best way to do things. I have however looked briefly into the trajectory held by both of the rounds I intend to use. .22lr CCI Minimag, 1 inch high at 50 yards M193, 0 inch at 50 yards If this does hold true, would it not make sense that if I print on center but 1 inch high, I should in theory be right on with the 5.56? I will further look into this, check the provided link and do more trajectory searches for these 2 rounds. I do thank everyone for the input. I do understand the overall thought expressed here. I do realize it would not be perfect, but what's the harm in giving it a go? worse case scenario, I will have more shooting time on the AR than it has even seen. But of course, must wait for 2 things first. Non freezeing temperatures and even daylight to see what I am doing. Thanks all so far. P.S. Just checked out the link to the M4 forum, I get it. Thanks. Last edited by Robk; February 15, 2013 at 04:22 PM.