GTA

Airguns by Make and Model => Crosman Airguns => Topic started by: oldnamvet on September 12, 2020, 09:03:18 PM

Title: Bull pup springer?
Post by: oldnamvet on September 12, 2020, 09:03:18 PM
Does anyone make a gas ram or springer in the bull pup configuration?
Title: Re: Bull pup springer?
Post by: JungleShooter on September 13, 2020, 04:35:13 AM
Springer Bullpup. Yeah, I'm interested.  Those would be custom guns.   ;)

Here's a thread with a discussion of this:
https://www.gatewaytoairguns.org/GTA/index.php?topic=160470.msg155785227#msg155785227 (https://www.gatewaytoairguns.org/GTA/index.php?topic=160470.msg155785227#msg155785227)

Matthias


Title: Re: Bull pup springer?
Post by: Blowpipe Sam on September 13, 2020, 10:03:12 AM
I think it would need to be a side lever.   ::)
Title: Re: Bull pup springer?
Post by: Acapulco on September 13, 2020, 11:05:34 AM
Qb57  was a chinese springer pup.
Title: Re: Bull pup springer?
Post by: AirGunner on September 13, 2020, 11:10:56 AM
I'm not an inventive person and I just can't invision a springer bull pup design.
Title: Re: Bull pup springer?
Post by: ssbn617 on September 13, 2020, 12:49:46 PM
Ray Apelles  used a Diana54 bull pup to take 2nd place in the Worlds in New Zealand.
Mitch
Title: Re: Bull pup springer?
Post by: Xraycer on September 13, 2020, 01:28:23 PM
Ray Apelles  used a Diana54 bull pup to take 2nd place in the Worlds in New Zealand.
Mitch
And here's the picture
Title: Re: Bull pup springer?
Post by: lefteyeshot on September 13, 2020, 01:50:50 PM
I'm not an inventive person and I just can't invision a springer bull pup design.

Google QB57 air rifle. I have two. One is .22 with the barrel permanently attached with loc-tite and the other has both barrels .177&.22. A while back I was hitting wine bottle corks with the .22 at 25 yards.
Title: Re: Bull pup springer?
Post by: AirGunner on September 13, 2020, 10:44:08 PM
I'm not an inventive person and I just can't invision a springer bull pup design.

Google QB57 air rifle. I have two. One is .22 with the barrel permanently attached with loc-tite and the other has both barrels .177&.22. A while back I was hitting wine bottle corks with the .22 at 25 yards.

It has been a while but I've seen pictures of the gun and somehow I thought it was co2. The QB name made me think that.
Title: Re: Bull pup springer?
Post by: AKM on September 18, 2020, 01:24:08 PM
That baby would be a bear to cock. Were would the leverage come from?
Title: Re: Bull pup springer?
Post by: Xraycer on September 18, 2020, 01:27:14 PM
That baby would be a bear to cock. Were would the leverage come from?
I'm betting the cocking weight had been greatly reduced on that competition gun.
Title: Re: Bull pup springer?
Post by: lillysdad621 on September 30, 2020, 11:02:36 PM
rays guns are set up at under 12 fpe as per competitions rules.  I have had the pleasure to try a rws 52 in .12 fpe and it was a sweet cocker, not difficult at all. im sure with practice he had to have mastered how to cock that 54...

the qb57 had also a tactical companion, the qb6 i think. also take down, bullpupish kinda rig.
Title: Re: Bull pup springer?
Post by: Garandsx5 on October 01, 2020, 11:30:24 AM
The Air Venturi TR5 is based on the Russian made IZH 60/61 by Baikal. The barrel is not in the bullpup position but the spring tube would qualify. Close enough?
Title: Re: Bull pup springer?
Post by: lefteyeshot on October 01, 2020, 02:55:29 PM
QB6 is very different than the 57. No wood, stock folds underneath and rest against the bottom of the receiver. Mechanically it's similar to a B4-1 side lever bit the receiver is shorter.
Title: Re: Bull pup springer?
Post by: dan_house on October 02, 2020, 01:07:56 PM
Ive seen several russian springers made into bullpups. the two that come to mind were break barrels
Title: Re: Bull pup springer?
Post by: lefteyeshot on October 02, 2020, 01:53:18 PM
You want to see one that's strange google QB89. Chinese bull pup, side lever springer. It compresses the spring backwards from back to front
Title: Re: Bull pup springer?
Post by: wakosama on May 07, 2022, 05:11:50 PM
El Gamo made one several decades ago. Sort of... El Gamo 68/68-XP.  Pyramyd Air blog did a write up in 2012. Can't post outside links.  Break barrel.  Had a pistol grip just back of the hinge pivot. Several versions including a repeater model.  NOT the Furia... fyi.
Title: Re: Bull pup springer?
Post by: lefteyeshot on May 07, 2022, 06:46:09 PM
El Gamo made one several decades ago. Sort of... El Gamo 68/68-XP.  Pyramyd Air blog did a write up in 2012. Can't post outside links.  Break barrel.  Had a pistol grip just back of the hinge pivot. Several versions including a repeater model.  NOT the Furia... fyi.

People on GTA are familiar with the El Gamo.

Also, above someone asked about leverage. I have an old Chinese B21. Made before the B30. Both clones of Diana 48/52. The side lever on my B21 has a  telescoping extension. I don't know if a B30 has that. That recent M14 looking springer has a telescoping underlever cocking lever.
Title: Re: Bull pup springer?
Post by: gloob on May 08, 2022, 12:09:20 PM
The TR5 is a bullpup. The 16" barrel is also too long for the gun, as it comes out of the box.

You could cut the barrel where the forestock ends, leaving 8" of barrel, and it wouldn't lose any velocity. If you also added a couple lbs of weight to the hollow spaces in the forestock, I am sure it would shoot more accurately like this, than with the stock barrel.
 
My TR5 barrel is shortened to 10", leaving only 2" of barrel sticking out the forestock. But I have 14" barrel shroud attached, for the weight. So that kinda defeats the purpose of a bullpup. It's extremely accurate in this setup.

It's more accurate after the barrel chop, even without the shroud. But it's an extremely hold-sensitive rifle, until you add some weight to it. The optics rail is not satisfactory, though, IMO. I modified mine with an aluminum picatinny rail.



Title: Re: Bull pup springer?
Post by: jsk68 on May 08, 2022, 05:43:10 PM
Not really a Bull pup but pretty close.

https://www.amazon.com/SuperTACT-Included-Wearable4U-Targets-Pellets/dp/B08HVXK387 (https://www.amazon.com/SuperTACT-Included-Wearable4U-Targets-Pellets/dp/B08HVXK387)
Title: Re: Bull pup springer?
Post by: Acapulco on May 08, 2022, 08:39:12 PM
I looked at the post and saw i responded and thought...don't  remember this.

Looked at date of post...2020 post. :-\
Title: Re: Bull pup springer?
Post by: lefteyeshot on May 08, 2022, 09:44:32 PM
If you want to see factory built bull pup springers do a google search. Qb 57, B9-1, B6Z and QB89. The 57 and 89 were made by Industry Brand the other two by someone else like Peak, BAM or XS. I got a couple 57's and a B6Z. I have a QB89 in parts.