New to Bullseye

I compete in several shooting sports and taking the new challenge of Bullseye. I love, collect and shoot Colt as much as possible. I have a Colt target 6" that has a picatinny rail. My question is what optic is preferred for Bullseye? Prism style or newer small red dot style? What size MOA works best? 
Thanks,
MC

Tube style 2 or 4 MOA dot size

Ultra Dot, Aimpoint Micro or clone. I like the Primary Arms clones. Trijicon SRO looks good but I never used one.

I like the Sig Romeo 5 for inexpensive clones.

I am leaning to Midas TSR3 Red Dot from Athlon Optics since it is a Kansas business.

If it really weighs 11.2 ounces, you aren't going to like it. 

Most weigh less than half of that and are 25mm or 30mm!

If it will be slide mounted, you will most likely have cycling issues.

Athlon is just another importer of Chinese optics. The optic in question is very heavy and has no reputation at all for durability on slide-riding applications. Might work fine on a frame mount, but even then, that's a lot of weight.

Prisms do not work in bullseye because they are not made for long eye relief options.

You will see, almost exclusively, lighter-weight tube-bodied red dot optics in bullseye. There are ring-mount optics, like the UltraDots, Sightron S30, old Japanese Tasco ProPoint, and various AimPoints (which can get a little heavy, especially the 9000SCs, but will be the highest quality options).

There are micro optics with integrated bases, like the Aimpoint Micro, Holosun 403/503, Sig Romeo4/Romeo5, Primary Arms Advanced Micro Dot.

Pick your poison. The bigger the optic, the more likely you will need different springs to get the gun running reliably. It will also change how the gun feels in recoil.

MOA is personal. Most optics will be somewhere in the 2-6 MOA range, but the apparent size of a dot reticle depends on a few factors (brightness at the range, brightness of the optic, eyesight, whether an aperture is used). "Bigger" dots purport to show less wobble, but if we all know anything from shooting irons, we are supposed to ignore the wobble (so long as it's centered), trust the hold, and press the trigger straight back.

1911-45 wrote:I compete in several shooting sports and taking the new challenge of Bullseye. I love, collect and shoot Colt as much as possible. I have a Colt target 6" that has a picatinny rail. My question is what optic is preferred for Bullseye? Prism style or newer small red dot style? What size MOA works best? 
Thanks,
MC

For Bullseye shooting, many prefer small red dot-style optics with a 2-4 MOA dot for precision. It offers quick target acquisition and accuracy. Good luck with your new challenge!

Here is a potentially good deal"-

https://www.ebay.com/itm/134733714107?hash=item1f5ec152bb:g:DgoAAOSwSb9lCJkD&amdata=enc%3AAQAIAAABABSe9LlGmh2WTdQTWfllHnkQZUTEpRBj6J2GKKN7774v3rC%2FcewUK6bkjbiAFctdHxrMhJ84Zd9pJLFVC0%2FWRocY6hkbrUqrYXLk4tmOD7%2FPZcHSX22YnmvH0WAkjoL5e%2B7rSD6ZkRb%2BoKvQHfrDWF6PpYGyDmFCKsrr89pAZhzdDniFnIT%2Bwi14dIPG%2Fiiyhb3iMtgpLDkvICzM8%2FpCWA9zr2xsrThx1b4Kyt9tGvyv1SW1jDVNjMYCE1Qyj6z%2BJ4NorOJ6d5Vlwl8jEBogsnb3iVarlms1zOLKab%2FyzNmAI5nBCn1IS9a7sKtcIjCsPUJobdrtR0zQe90Xmm%2FOsxc%3D%7Ctkp%3ABk9SR7rmraXXYg

I would prefer horizontal split rings (look for Monstrum on Amazon - about $15), then sell on the two pairs of vertical rings.

The 1" UD is my favourite "entry level" red dot. It will easily take to Master.

1911-45 wrote:I am leaning to Midas TSR3 Red Dot from Athlon Optics since it is a Kansas business.

 
If I can't put shades on it I'm not interested

Bill