Dracul
Master sergeant
Posts: 1,341
|
Post by Dracul on Jul 1, 2014 16:17:59 GMT -5
Hello,
I know this might sound odd, but if this is figured out it might help other apartment dwellers like myself.
So, I live in an apartment, and don't have the back yard or a friend's back yard to set up some long range, human sized targets to shoot at and set up sights and optics on my airsoft guns.
When I was in the Marines, we had a way to first accurately adjust the RCO on our M16's and M4's. We shot at 32 yards, at targets that were the size of humans, as if they were at 300 yards. Once the grouping was good, then one would move up to shooting at legitimate human size targets at the 200, 300, and 500 yards and adjust them more precisely.
Using this principle, does anyone have or know of targets that would represent human sized targets at 100 or 200 feet (or however the max range is on a ~500fps gun), but only from 25-30 feet away?
I don't like going to games with out my sights being zeroed in. I'm not looking for the 100% accuracy, but just enough to go out there.
Thank you!
|
|
|
Post by brownien on Jul 1, 2014 16:46:29 GMT -5
Geometry! Gah! Lol for a human size target (6ft tall) at 200ft, would be roughly be 11" tall at 30ft
That took me back trying to remember material from almost 6years ago! Lol
|
|
|
Post by insterburger on Jul 1, 2014 17:30:32 GMT -5
There are plenty of sites where you can find printable targets for free, and Nate is right that you'd want your target to be about 11", or, as it happens, as tall as a piece of standard printer paper (convenient!).
But cutting disatances will NOT get your sights zeroed in-- it will actually do the opposite. As I'm sure you know with real guns, and even moreso with airsoft guns, the arc of the projectile and its drop will significantly affect the point of aim, so your sights might be right on at a given distance, but you might need to aim higher at a longer distance to account for bullet drop, or aim lower at close ranges because of the initial rise out of the barrel (during WWII kar98k's usually had to be aimed quite low at distances under 100 yds.). If you sight in at 30 ft., you will almost certainly find yourself off target at 100+ feet. Not to say you can't practice shooting at those shorter distances, but know you will have to zero in again at full range before skirmishing.
|
|
Dracul
Master sergeant
Posts: 1,341
|
Post by Dracul on Jul 1, 2014 17:44:49 GMT -5
Thanks for the math guys!
Insterburger: I know all about that, haha. Thats why 32 yards represents 300 yards, because at 32 yard and 300 yards, is when a 5.56 shot from an M16 is at the same elevation again. I know I'm not going to get super precise, but having that ball park BZO will save me time and hassle when at the field trying to zero in my sights. As it to be counter intuitive to getting more precise? I'm not too sure about it. Even if it does go against my favor and make me waste more time at a field, while everyone else is playing, at least I have some sort of idea and something to go on when I eventually go back to the apartment and rethink this.
|
|
|
Post by insterburger on Jul 1, 2014 18:38:30 GMT -5
I hear ya. As you say, just repeatedly working working with a gun puts you ahead of the game. I wouldn't count on the ballistics of an airsoft BB mirroring those of a 5.56 projectile on a smaller scale, but if you're looking for ballpark, it might do just fine. Conversely, if you had even one day where you could test fire outdoors, it would be pretty easy to establish optimum short ranges to match real-life distances by simply placing targets at a variety of distances and seeing how the balls fly.
|
|
2nd Bat
Master sergeant
Posts: 11,813
|
Post by 2nd Bat on Jul 2, 2014 15:59:18 GMT -5
The main advantage of apartment practice is simply getting used to the function of the gun. Loading/ reloading, what is sounds like when its feeding and when it is not. Hop up however is critical and is most closely related to zeroing an actual weapon. there really isn't anyway to accurately adjust it when not firing with some range to work with.
The good news is with airsoft you can see your actual Bbs trajectory so field "kentucky drop and windage" are pretty quick and easy. As you know a full body target is a rarity so partial silhouettes make the most sense as that is what you're typically shooting at. At range the flight trajectory is quite weird on an airsoft round as with adjustable backspin it can be made to climb quite pronouncedly. Some of this of course is neccessary to increase range and combat a Bbs natural tendency to drop at the same rate it would when dropped from your hand. (simple physics). The challenge is that this backspinning ball appears to be flying straight and true and appears to be going much farther then it actually is. our eye and brain tells us that the ball is continuing off into the wild blue yonder when in fact once its inertia is lost it is in fact dropping almost straight down and not going further a field although it appears to be. Often these shots apear to be striking opponents down range who are not calling hits when in fact they aren't even reaching them. There is no real substitute for controlled range practice to fully familiarize yourself with your airsoft guns capability.
|
|
|
Post by mentosfreshmaker on Jul 5, 2014 17:45:35 GMT -5
This may sound silly, but here goes: I use oranges. Yes, oranges. My test-bed range for builds is exactly 25m (27 1/3yd, roughly), enclosed and dead level. That's as close to flat and level as I can keep an airsoft projectile, without drop or lift, in semi. If, using a bench rest, I can poke a hole in an orange at that range with a .25, by my math I'm firing about 350fps and dead-nuts locked with my sights. Standard navel orange makes a good rough approximate target for the vitals area of the human chest at 200m (218 3/4 yd, roughly). My Mosin build will blow a hole clean through the orange using .30s, though Noone lets me skirm with Olga after field chronos are done.
|
|
2nd Bat
Master sergeant
Posts: 11,813
|
Post by 2nd Bat on Jul 5, 2014 19:03:01 GMT -5
Oranges would be a good test target. If your rifle is going through the orange at 25 meters I don't blame anyone for refusing its use aginst living targets.
|
|
Dracul
Master sergeant
Posts: 1,341
|
Post by Dracul on Jul 6, 2014 0:10:22 GMT -5
Huh, oranges at 25 meters to represent the upper torso at 200m. Sounds good, but I don't have 25 meters in my Apartment.
Thanks for the suggestion though!
|
|
2nd Bat
Master sergeant
Posts: 11,813
|
Post by 2nd Bat on Jul 6, 2014 12:48:53 GMT -5
Fruit of any kind and at any range indoors is a bit messy.
|
|
Dracul
Master sergeant
Posts: 1,341
|
Post by Dracul on Jul 6, 2014 19:46:50 GMT -5
That, too. haha.
|
|
|
Post by mentosfreshmaker on Jul 7, 2014 7:24:00 GMT -5
This is how we make breakfast drink in glorious Motherland!
|
|