I thought I would add my own input for the Behr Acrylic Latex paint. I know my post count is single digit on here, but I own and operate a tier 1 painting facility for auto. I have been in paint since I was 14 and can colour match better than paint factories. Likewise, I have been doing production paint for many different industries (ag, commercial equipment, auto, etc.) so I have been around for a while in paint.
I wanted to try out this stuff so I gave it a whirl. I would like to record what I found here. First of all, I wanted to note that a large requirement for the original paint was low reflectivity. This means more than just flat paint, although that is a necessary component, obviously. While I have quoted CARC jobs before, we never did it. However, I believe that certain chemistry is employed to reduce the reflection of radiation of as many types as they could manage at the time CARC was made. This includes obviously light. While the Behr house paints manage to LOOK the same when you look at the paint at a 90* angle from the surface, the house paint is far more reflective (ie., shiny) at an oblique angle.
I used the formula for 383 Green (34094) found in the first post and brush painted a few spots on a friend's M109A3 that was painted 383 Green by the military. I did this purely to check color, I did not prime or anything. Likewise, it was on a sunny 85* F day and the metal substrate was quite hot. Anyways, I found the paint to be pretty close, but felt the Behr paint was slightly too saturated in green. Granted, I don't know how old the military CARC paint was, but there it is, none the less.
I thought I might try a new paint match since there were comments about new pigments. This is, however, despite the fact that the paint mixer knew how to read the old formula and replicated it so it is the same as the 'updated' formula posted later. I ended up taking a piece from my buddy's truck in and then matched it. Long story short, it matched pretty much dead on when viewed from a perpendicular angle to the surface. That is to say, it is a more faded green similar to CARC Green compared to the Behr formula posted above. However, at an oblique angle, it is still too shiny, albeit maybe a hair less. This is after brushing a few spots on the truck, including some in a cool, shaded area. I think, however, that spraying it would decrease this effect slightly.
The bottom line is I do not like the reflectivity of the Behr, nor the adhesion and hardness. Now, I know many are happy with it and that is perfectly fine. I probably would be as well, but being a 'paint guy' I guess I am extremely picky about it.
So, bottom line, I have two gallons of the standard Behr formula and one gallon of custom color match (as of Mid-June 2012) with Home Depot's new color system. I wanted to post the formula so anyone that might be interested in paint to touch up an existing worn paint job, or just for posterity, etc. I am not trying to undermine the standard formula or anything; just wanted to post it in case someone was interested.
*********WARNING: This is NOT the standard color formula!!!! Look at first post for standard formula***********
Color - Custom match to existing military CARC 383 Green
Behr Deep Base 4300 - Exterior Flat
Colorant-----OZ----384th
----EL----------3------248
----IL-----------2------224
----KXL---------0-------28
----TL-----------5------268
*********WARNING: This is NOT the standard color formula!!!! Look at first post for standard formula***********
Also, for tinting KILZ primer, try asking them to tint it with Lampshade Black instead of a green since you are limited on the ounces of tint. That will get you to a darker color (grey) so it will hide better.