Front sight, 22mm or 30mm ?

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SND

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I'm slowly gathering/ordering things for getting into TR(part time...) next season. I only tried it with a 18mm a couple years ago which worked fine, right now my plan is to get a 22mm iris and probably Riles Palma front post.
Should I give the 30mm options like the rightsight more thought? any advantages to it that I may regret not having if I go basic 22mm? I have good eyes, shouldn't need glasses for many more years.

thanks
 
I prefer 30mm as it makes it easier to centre the front sight in the rear sight and with a lense in the front sight I can easily see the target number.
 
What size iris is normally used in the 30mm rightsight if using that .5 lens? 2.9-4.9, or 4.0-6.0?
Other thing, I will probably eventually end up making a 6" barrel extension. I can see the 30mm being easier to center that far out, a slightly bigger iris might also help?
 
I have a 30mm riles, and I believe the centra iris that came with it is 3.8-5.8. Coupled with a 0.5 lense it works perfect for me.

The only complaint with the riles is you need an abc block to level the site, unless someone has a trick.
 
I am using a 30mm Right Sight with a 5.5-7.5 iris. I also have a 4.0-6.0 but find when opened to 6.0 at 500 yards on cloudy days there isn't enough white around the target, at least for these old eyes. One mistake that new shooters make is using too small of a front iris. I have seen cadets that complain because they can't get an iris smaller than 2.4. I can't even see the target through a 2.4. If I was coaching a new shooter with good eyes, I would make them start shooting with at least a 4.0 front insert and tell them that is the only size they come in.
 
Having the front ring too small is worse than too big. A good starting point is to have about a 3 MOA of white between the target and the ring. You can use basic trigonometry to work out the ring size based on the target and distance you're aiming at, your sight radius and any lense in the front sight.

Somewhere in my archive I've got a spreadsheet setup for that.
 
What do most prefer, a front Iris with the horizontal cross bar, or the ones without any that are clear all around the circle and just use the bubble level?
The one I used before didn't have any and I kinda liked that, but haven't tried one with it.
 
The one without the crossbar has the iris in the middle of a plastic disc. The disc does get dirty and is a PITA to clean. Even though mine have crossbars, I use the level before trusting the crossbar because no all ranges are level and not all targets are level.
 
Thanks, I'll likely go with the normal Rightsight package, 4-6mm.
Its starting to look a lot like I won't have time to get this new rifle built for this season though, but if I have the parts here its at least that much done... :(
 
SND said:
Thanks, I'll likely go with the normal Rightsight package, 4-6mm.
Its starting to look a lot like I won't have time to get this new rifle built for this season though, but if I have the parts here its at least that much done... :(
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Make sure your gunsmith turns the barrel to .750 diameter 3 inches back from the end of the muzzle. That way the sight or sun shade doesn't get burned from the muzzle blast.
 
I do all my gun work :)
I did notice some of them getting a bit crusty sticking out past.... I'm still debating making a muzzle/sight extension, if time allows it might be worth a try. I heard a few are using them in Ontario.
 
SND said:
I do all my gun work :)
I did notice some of them getting a bit crusty sticking out past.... I'm still debating making a muzzle/sight extension, if time allows it might be worth a try. I heard a few are using them in Ontario.
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Bloop tubes are so early 90's.lol After the eagle eyes became legal to use under ICFRA rules there was no need for bloop tube anymore, unless of course you need it on a smallbore rifle to get the sight out there so you can see it.
 
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