AR Sponsor
Posted: 6/5/2009 9:34:59 AM EDT
|
What kind of zeroes are you guys using with your .22LR uppers?
I was thinking about having mine zeroed ~1.5" low at 25 yards to match my main AR. Any ideas what this will give me at 50 and 100 yards? |
|
Rock n roll. Thanks! Based on a 36gr bullet at 1200fps with a BC of .103, sight height of 2.5"... A 100yd zero will be: 1.02" high at 25 yards 2.77" high at 50 yards 2.50" high at 75 yards 0.00" at 100 yards 12.5" low at 150 yards A 25 yd zero will be: 0.00" at 25 yards 0.73" high at 50 yards 0.56" low at 75 yards 4.08" low at 100 yards 18.61" low at 150 yards |
|
Quoted:
 how do you guys find the BC of .22LR bullets? I have NEVER seen this information on packaging...Educated guess. I looked up the BC's of similar weight Hornady bullets in the same caliber. I also used the estimator on the above website (left side of the screen). |
|
Quoted:
how do you guys find the BC of .22LR bullets? I have NEVER seen this information on packaging...Over on the left side of the Ballistics calculator is a BC calculator. It will give you a close approximation of the BC. Also this thread on Rimfire Central lists the BC of many rimfire rounds. Rimfire Central |
| I've got mine zeroed in at 50 yards. It shoots very good groups at that distance. 100 yards and the bulk stuff just groups to poorly for me. I'm getting under an inch group for several high speed 22 ammo in my spikes at 50. At 100 the groups more than double. I don't believe it's in the rife but the poor quality of 22 ammo on the market. Wish some one would make a UM1 type ammo again. hyper velocity and match grade quality in one bullet. That's what the 22-AR needs. |
AR Sponsor