The Flip up breech did anyone like them?

[Barryg]

Walther LGR breech.

Closed.

Thanks for the pictures
Do the pellets load into the barrel like the DIana and Webley?

[bighit]

this one looks ok http://www.pyramydair.com/blog/2009/...-quick-part-1/

[Shed tuner]

Walther LGR breech.

Closed.

much less inneficient in pneumatics...

[Barryg]

this one looks ok http://www.pyramydair.com/blog/2009/...-quick-part-1/

Yes I like the look of it but it also might have the world's longest airgun TP

[Hsing-ee]

this one looks ok http://www.pyramydair.com/blog/2009/...-quick-part-1/

But why is the trap-door long enough to put a .303 round in? Surely it could be a bit shorter and more efficient or does everyone have not sausage-fingers but leg of lamb fingers?

[junglie]

didn't mind them but preferred the roll breach.

Me too, took some getting used to on my eclipse but worked ok, the rb2 i had was so much better once you got the knack of sliding pellets down it so they didn't flip over.(short bodied pellets that is)

[junglie]

I like them.
Mainly because people often try and put a pellet in the wrong hole.

Lol. done that a few times with my eclipse when i first got it.

[Geezer]

Surely a flip-up (or rotary) could be made that opened automatically like an early Airsporter?

Of course it would add cost and complexity,

[hammy]

I liked the roll breech , like on the Black Fox rifles.
Where you roll it to the side then it's a direct load to the barrel.
I regret never getting one, despite their looks, which I actually liked.
They used to handle quite well.

[maximus]

So does the Gamo Cf16/20

As you say though, indirect loading is the problem.. the flip ups do not have this problem.

I have not really tried a 57 so don't know if their accuracy is below par when compared to say a 77. If it was not noticeably worse then the alignment issue might not be anything to worry about. All the fixed barrel loading solutions seem to have at least one "con", as below.

Loading tap - sealing requires precision fit and alignment is also dependant on quality engineering.
pop-up - no sealing issues, just alignment concerns
sliding cylinder - could be dangerous plus adds extra weight
RB rotary type - long tp and a bit fiddly.
flip up - long tp
sliding barrel ala Airlogic Genesis - fit of barrel needs to be good or no better than a wobbly break barrel

Have I missed any??

[derekj]

didn't mind them but preferred the roll breach.

Yes, that was the best alternative to slide breech, BSA were on to something there; just a bit under engineered, and strangely works the wrong way.

[derekj]

I have not really tried a 57 so don't know if their accuracy is below par when compared to say a 77. If it was not noticeably worse then the alignment issue might not be anything to worry about. All the fixed barrel loading solutions seem to have at least one "con", as below.

Loading tap - sealing requires precision fit and alignment is also dependant on quality engineering.
pop-up - no sealing issues, just alignment concerns
sliding cylinder - could be dangerous plus adds extra weight
RB rotary type - long tp and a bit fiddly.
flip up - long tp
sliding barrel ala Airlogic Genesis - fit of barrel needs to be good or no better than a wobbly break barrel

Have I missed any??

I think you missed the revolutionary bolt action breech design on the Sterling HR81

[Geezer]

I think you missed the revolutionary bolt action breech design on the Sterling HR81

Good point And on the Park RH91/93.

We can add the horizontal rotating breech as seen on the Gamo Falcon/Center, and a similar one on the Crosman SSP250 and a CO2 rifle (the 262?).

And the various magazine/clip systems: SLR88/98, Goldstar, Diana 300.

Oh, and a break-barrel with an underlever on Whiscombes.

[Shed tuner]

.
And the various magazine/clip systems: SLR88/98, Goldstar, Diana 300.

That's a point - a gate type system (like the HW 57, Gamo cf-20, or the ASI centre), but using a probe like on the SLR or goldstar to directly seat the pellet from the gate to the barrel...

Short TP (only needs to be a pellet's length), not fiddly, and safe. Just a bit tricky to engineer.

[Geezer]

That's a point - a gate type system (like the HW 57, Gamo cf-20, or the ASI centre), but using a probe like on the SLR or goldstar to directly seat the pellet from the gate to the barrel...

Short TP (only needs to be a pellet's length), not fiddly, and safe. Just a bit tricky to engineer.

Or some kind of automatically-operated downward sliding or pivoting breech block which, combined with a sliding comp chamber allows direct breech loading but also acts as, or operates, an ABT? Fuzzy concept at this stage, not a thought-through idea.