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Posted: 6/10/2015 4:55:04 PM EDT
| Last time I went to the range I actually took some time to zero my Bushnell TRS-25. Since I was at an indoor range the furthest out I could shoot was 25 yards. I am planning on taking it to the outdoor range I belong to and I know that in order to shoot at 100 yards I'd need to aim 4" high on the target. What I'm wondering is, how many clicks would I need to adjust the TRS-25 to raise it 4"? Or is this something that has to be done at the range? |
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Do it at the range. The clicks, such as they are are supposed to be 1/2 MOA, or about 7 or 8 clicks at 100 yards. But they ain't that accurate or repeatable at that price point, so just zero it then.
FWIW. Consider a 50 yard battle zero for it, like you would with iron sights. That would put you about 2.5" high at 100, if I recall correctly, for most bulk 55 and 62 grain ammo. A 50 yard zero will keep you within about 4 inches of your point of aim all the way out to close to 300 yards, assuming you are shooting a .223/5.56. |
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Quoted:
Do it at the range. The clicks, such as they are are supposed to be 1/2 MOA, or about 7 or 8 clicks at 100 yards. But they ain't that accurate or repeatable at that price point, so just zero it then. FWIW. Consider a 50 yard battle zero for it, like you would with iron sights. That would put you about 2.5" high at 100, if I recall correctly, for most bulk 55 and 62 grain ammo. A 50 yard zero will keep you within about 4 inches of your point of aim all the way out to close to 300 yards, assuming you are shooting a .223/5.56. OK, I'll do that. I've been meaning to pickup some M4 zeroing targets so now this'll give me a good excuse. Both my ARSs are 5.56/.223 but I'll soon have a 6.8 in the mix too. |
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Quoted:
Do it at the range. The clicks, such as they are are supposed to be 1/2 MOA, or about 7 or 8 clicks at 100 yards. But they ain't that accurate or repeatable at that price point, so just zero it then. FWIW. Consider a 50 yard battle zero for it, like you would with iron sights. That would put you about 2.5" high at 100, if I recall correctly, for most bulk 55 and 62 grain ammo. A 50 yard zero will keep you within about 4 inches of your point of aim all the way out to close to 300 yards, assuming you are shooting a .223/5.56. ehhh, your math is a little off.....like a lot. |
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Quoted:
ehhh, your math is a little off.....like a lot. Quoted:
Quoted:
Do it at the range. The clicks, such as they are are supposed to be 1/2 MOA, or about 7 or 8 clicks at 100 yards. But they ain't that accurate or repeatable at that price point, so just zero it then. FWIW. Consider a 50 yard battle zero for it, like you would with iron sights. That would put you about 2.5" high at 100, if I recall correctly, for most bulk 55 and 62 grain ammo. A 50 yard zero will keep you within about 4 inches of your point of aim all the way out to close to 300 yards, assuming you are shooting a .223/5.56. ehhh, your math is a little off.....like a lot. What did I miss? He is wanting to come up 4" to center at 100 yards. That is a bit less than 4 MOA. There are two clicks per inch on an optic with 1/2 MOA clicks, as I believe the TRS-25 is. 4x2=8 clicks. But since one MOA is a bit over 1" at 100 (1.04, IIRC), he might do it with only seven clicks. Please correct my math. What did I miss? Is the TRS-25 not 1/2 MOA clicks? The spec sheet shows.5 MOA adjustments. |
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Quoted:
What did I miss? He is wanting to come up 4" to center at 100 yards. That is a bit less than 4 MOA. There are two clicks per inch on an optic with 1/2 MOA clicks, as I believe the TRS-25 is. 4x2=8 clicks. But since one MOA is a bit over 1" at 100 (1.04, IIRC), he might do it with only seven clicks. Please correct my math. What did I miss? Is the TRS-25 not 1/2 MOA clicks? The spec sheet shows.5 MOA adjustments. Quoted:
Quoted:
Quoted:
Do it at the range. The clicks, such as they are are supposed to be 1/2 MOA, or about 7 or 8 clicks at 100 yards. But they ain't that accurate or repeatable at that price point, so just zero it then. FWIW. Consider a 50 yard battle zero for it, like you would with iron sights. That would put you about 2.5" high at 100, if I recall correctly, for most bulk 55 and 62 grain ammo. A 50 yard zero will keep you within about 4 inches of your point of aim all the way out to close to 300 yards, assuming you are shooting a .223/5.56. ehhh, your math is a little off.....like a lot. What did I miss? He is wanting to come up 4" to center at 100 yards. That is a bit less than 4 MOA. There are two clicks per inch on an optic with 1/2 MOA clicks, as I believe the TRS-25 is. 4x2=8 clicks. But since one MOA is a bit over 1" at 100 (1.04, IIRC), he might do it with only seven clicks. Please correct my math. What did I miss? Is the TRS-25 not 1/2 MOA clicks? The spec sheet shows.5 MOA adjustments. I misunderstood what you were trying to say. |
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Quoted:
I misunderstood what you were trying to say. Quoted:
Quoted:
Quoted:
Quoted:
Do it at the range. The clicks, such as they are are supposed to be 1/2 MOA, or about 7 or 8 clicks at 100 yards. But they ain't that accurate or repeatable at that price point, so just zero it then. FWIW. Consider a 50 yard battle zero for it, like you would with iron sights. That would put you about 2.5" high at 100, if I recall correctly, for most bulk 55 and 62 grain ammo. A 50 yard zero will keep you within about 4 inches of your point of aim all the way out to close to 300 yards, assuming you are shooting a .223/5.56. ehhh, your math is a little off.....like a lot. What did I miss? He is wanting to come up 4" to center at 100 yards. That is a bit less than 4 MOA. There are two clicks per inch on an optic with 1/2 MOA clicks, as I believe the TRS-25 is. 4x2=8 clicks. But since one MOA is a bit over 1" at 100 (1.04, IIRC), he might do it with only seven clicks. Please correct my math. What did I miss? Is the TRS-25 not 1/2 MOA clicks? The spec sheet shows.5 MOA adjustments. I misunderstood what you were trying to say. That's ok. if he wants a 50 yard zero, it should shoot about 2.25"-2.5" high at 100, depending on his ammo and would peak at about 4" high at arould 150 before starting back down in relation to line of sight. If he's at a 100 yard range he would come up about 5 clicks, maybe only 4 from his present zero. The real problem is that the dot movement will not be very consistent with the clicks on that optic and with a 3 MOA dot and only 1x magnification, all of this will just be approximations. His group size at 100 yards will probably be larger than the changes in zero with the adjustments, so it will be hard to tell whether he has it right. But a 50 yard zero actually verified at 50 might be best, then leave it as good to go for a red dot with a 3 MOA aiming point. Just one opinion. |
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Quoted:
I read the manual again last night trying to see what the adjustments were incremented to but it doesn't say. I too thought one click was 1/2 MOA. Go to Bushnell's website for the specs. It shows .5 MOA (actually .5" @ 100 yards) per click for the TRS-25. Scroll down to "click value". http://bushnell.com/tactical/rifle-scopes/ar-optics/trs-25-hirise |
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