Accuracy of regular size rifle vs. bullpup

For me the long size matters only with open sights, you CANT aim with the rear sight near your nose !

So we have optics

Lets measure then, the distance from the back sand bag or shoulder to the front sandbag, bipod or hand, its about the same at both types

So the benefits of BP are 1. keep the mass and the center of gravity closer to body, not front weight, 2. Geometry, assume the gun as a cue of biliard, we try to put our hands at the edges and that what for ? If we keep the cue at the middle like long gun, a small angle at the back moves the front end of the barrel (cue) the double
for example, try to put the bags at the ends of the gun, the gun will be stable, but if the front bag goes near the trigger the front end (barrel) will be very sensitive even at breath
 
Lot of criticism of BP triggers, probably well deserved. I appreciate good, match quality triggers. I can attest, the Veteran is an exception to the lousy triggers on many bullpups, it is excellent.


This has a lot to do with quality but I do agree, That being said with new tech available I believe the Bullpup trigger systems are going to find themselves up to par with any other match trigger system. 
 
The trigger issue of being bad on bullpups is very subjective. Has a lot to do with particular gun and tuner. This all go back to the old argument of tune or no tune. Early in my airgun venture i got a chance to shoot a Paul Watts tuned springer. Set me on the path of what the hell. Any gun manfactured will benefit from a tear down, cleaned, (big one here, proper lube ) along with the other secret things they do. Everybody need to eat. I help feed Charlie at Georgia airgun, David Slade, Ernest Rowe, AZ, and John in Pa. If your gun perform well out of the box i applaud you. However, if you ever get a chance to shoot or own a gun touched by one of the above or others please do. Bad trigger myth gone
 
For me the long size matters only with open sights, you CANT aim with the rear sight near your nose !

So we have optics

Lets measure then, the distance from the back sand bag or shoulder to the front sandbag, bipod or hand, its about the same at both types

So the benefits of BP are 1. keep the mass and the center of gravity closer to body, not front weight, 2. Geometry, assume the gun as a cue of biliard, we try to put our hands at the edges and that what for ? If we keep the cue at the middle like long gun, a small angle at the back moves the front end of the barrel (cue) the double
for example, try to put the bags at the ends of the gun, the gun will be stable, but if the front bag goes near the trigger the front end (barrel) will be very sensitive even at breath


I follow what you are saying, and the geometry is as you state. But, here is the rub. For benchrest, the balance point doesn't make a heck of a lot of difference, as the front mechanical rest and the rear bag will be placed for maximum support, and, you are usually using a light pull trigger, which makes a difference. But now, consider position shooting, in which I will include hunting. A between-the-hands balance is not the preference for many such shooters. Most position shooters and hunters need more weight out front for stability. 
 
For normal air gun ranges in the smaller calibers I don’t think rifle or pup style makes much of a difference. 

Getting into the larger airguns with some decent recoil the style may affect shooter accuracy 

There is a reason why snipers haul around a heavy as hell 50BMG. Imagine firing a 30” skeletonized ultra lite 50BMG......the thing would probably rip your fingers off and dislocate your shoulder before sailing over your back. 
 
For me the long size matters only with open sights, you CANT aim with the rear sight near your nose !

So we have optics

Lets measure then, the distance from the back sand bag or shoulder to the front sandbag, bipod or hand, its about the same at both types

So the benefits of BP are 1. keep the mass and the center of gravity closer to body, not front weight, 2. Geometry, assume the gun as a cue of biliard, we try to put our hands at the edges and that what for ? If we keep the cue at the middle like long gun, a small angle at the back moves the front end of the barrel (cue) the double
for example, try to put the bags at the ends of the gun, the gun will be stable, but if the front bag goes near the trigger the front end (barrel) will be very sensitive even at breath


I follow what you are saying, and the geometry is as you state. But, here is the rub. For benchrest, the balance point doesn't make a heck of a lot of difference, as the front mechanical rest and the rear bag will be placed for maximum support, and, you are usually using a light pull trigger, which makes a difference. But now, consider position shooting, in which I will include hunting. A between-the-hands balance is not the preference for many such shooters. Most position shooters and hunters need more weight out front for stability.

I try to tell my opinion to some of my friends but "you cant teach old dog new tricks" some of them cant even put their face at the right place to aim !

For me the extra weight front of my hand make the aim difficult, hunting position

As for the front mechanical rest and the bag at the back is the same at both guns, the difference is the BP minimize the movement at the front of the barrel
 
I have a streamline 22, r5m long 25 and Uragan compact22. The streamline and edgun are much easier for me to shoot groups with off a bench. The Uragan compact is the easies to shoot offhand followed by the edgun. I personally like the pull pup, especially a longer one. If I was going to bench shoot mainly it would be a regular rifle or longer bull pup. For a stalking squirrel gun I would go with something really short, Uragan compact or Lelya/ Leshiy. All good for 75ish yards on squirrels.