Gun Picture Thread

[Hammer67]

 

[91bravo]

 

[91bravo]

What zero are yall using for your ARs?

 

[Fixedwing]

50-200

 

[91bravo]

50-200

I’m going to stick to the 25/300 meter zero on this Windham, since I’ll be shooting the iron sights on it.

 

[Fixedwing]

Iron sights were ok in boot camp, but my eyes are too old for that now...

 

[91bravo]

Iron sights were ok in boot camp, but my eyes are too old for that now...

I can still shoot Copenhagen cans at 100 yards with iron sights and my eyes are 51 years old.

 

[Fixedwing]

From 200 to 500 yards, all done with irons at Camp Pendelton in 1983...

 

[texpat]

50-200

That's what I used to do, along with 25/200 for the AK's, but recent threads on this are why i've started working on a ballistics app, the 37.5 zero for .223 is very interesting.

 

[texpat]

 

[91bravo]

That's what I used to do, along with 25/200 for the AK's, but recent threads on this are why i've started working on a ballistics app, the 37.5 zero for .223 is very interesting.

The 36 yard zero has more hit points over a longer range with fewer holdovers/unders. I will have to try this zero out and test it at range next chance I get. 50/200 yard zero has me dead on at 50 and a few inches low at 200. Shooting 62gr Gold Dots from an 18” barrel. So a 55gr xm193 round may hit dead on at 200.

 

[Hammer67]

The 36 yard zero has more hit points over a longer range with fewer holdovers/unders. I will have to try this zero out and test it at range next chance I get. 50/200 yard zero has me dead on at 50 and a few inches low at 200. Shooting 62gr Gold Dots from an 18” barrel. So a 55gr xm193 round may hit dead on at 200.

I generally do a 36-yd zero. Although on my carbine with a LPVO I do a 50-200.

 

[trakker45]

 

[91bravo]

Is that a PA prism?

 

[Alone]

View attachment 3143106

That thing looks crazy fun.

 

[GB940Rookie]

Added a Magpul fore end. Can’t get use to the corn cob style.

 

[texpat]

Is that a PA prism?

Close, it's an older MD-06L micro-dot, love those PA red-dots, owned 'em for years of trouble-free use.

So, 36 yard zero is it? I need to read more about that, I always just used the 50-200. Oh dang, just realized I can model it in my new app prototype, woo-hoo!

 

[91bravo]

No holdovers out to 300. Of course this changes slightly if you’re shooting a heavier grain bullet

 

[texpat]

No holdovers out to 300. Of course this changes slightly if you’re shooting a heavier grain bullet View attachment 3143280

Nice! Do you know if the round you're modeling there has a flat-base or a boat-tail? Any chance you know the BC?

I need to change a couple of things and re-compile to do 12 yard increments, later on i'll make that adjustable in the GUI. Also going to add a G7 drag table for boat-tails at longer ranges. It's going to be a small simple app, but i'm going to dial-in the accuracy of it to the nth degree. I got the logic done yesterday for factoring in temps, humidity, and barometric pressure (based on calcs from the elevation param).

 

[Hammer67]

Nice! Do you know if the round you're modeling there has a flat-base or a boat-tail? Any chance you know the BC?

I need to change a couple of things and re-compile to do 12 yard increments, later on i'll make that adjustable in the GUI. Also going to add a G7 drag table for boat-tails at longer ranges. It's going to be a small simple app, but i'm going to dial-in the accuracy of it to the nth degree. I got the logic done yesterday for factoring in temps, humidity, and barometric pressure (based on calcs from the elevation param).

I think that's just a basic approximation that gets one in the ballpark - there is still going to be some variation based on bullet design and a host of other variables.