No wonder the weihrauch’s have a rap in 22 cal

[rangur1]

Didn’t know to put this here or in ammo section. But holy dogpiles of dung. The ammo specs SUCK! I purchased H&N FTT , Barracuda 15g , Barracuda 18g , Hades, , JSB 15.9 and 18.1g and AA 18g pellets. These range from 5.50-5.57 in diameter. With the H&N FTT at 5.56-5.57 - with the Weihrauch “oversized barrel in 22 no wonder this ammo shoots best on average.

 

[Sqwirl57]

Didn’t know to put this here or in ammo section. But holy dogpiles of dung. The ammo specs SUCK! I purchased H&N FTT , Barracuda 15g , Barracuda 18g , Hades, , JSB 15.9 and 18.1g and AA 18g pellets. These range from 5.50-5.57 in diameter. With the H&N FTT at 5.56-5.57 - with the Weihrauch “oversized barrel in 22 no wonder this ammo shoots best on average.

Isn't your 97K brand new? Let it break in some before worrying too much about group size. Over the next 2 tins you'll see it start to really settle in and your groups will just get better and better. My .22 97K with 5.54 FTTs will keep up with most PCPs out to 50yds.

 

[KitCarson16]

I dunno bout that oversized barrel rumor. Urban legends do become fact with enough time and repetition.
In any event both my HW97 and HW95 like the 5.54 head size and they are the second best pellet in both rifles.
The lazer pellet is the GTO 11.75, the best in both rifles. I can equal an FX Crown at 50 yards with that GTO. My Crown had to hang its head in shame this morning. Grin! Of course I do get bored shooting it, and sloppy, and with a springer there is full concentration on each shot.
Cheers
Kit

 

[maxtrouble]

I have very good results with the H&N FTT 5.53 and 5.54 out of my HW50. I can hit quarter sized spinners all day long at 50 yards.

 

[rangur1]

Isn't your 97K brand new? Let it break in some before worrying too much about group size. Over the next 2 tins you'll see it start to really settle in and your groups will just get better and better. My .22 97K with 5.54 FTTs will keep up with most PCPs out to 50yds.

You misunderstand, my observations were hearing commentary on another thread I put out and the member or 2 stated oversized barrel having trouble with fair amount of ammo and H&N FTT did best. After sorting with pellet gage I found wide variety in head sizes, far more than .25 or .30, that’s all . I will shoot all the pellets and conclude further from there. But based on the head size of the H&N FTT it made sense it was shooting best on average- based on that claim. I have no personal fact yet- but will do research, sorry for misleading post.

 

[cjtamu]

Ahh, now I makes sense. That’s crazy. Noticed difference in a few pellets when loading but wow!

 

[Mycapt65]

I wouldn't worry about measuring pellets and barrels as much as getting everything else right and getting through a few tins of good pellets.

Also measuring pellets accurately is difficult without out a guage. The stated sizes are head sizes. Not skirt sizes. Skirts always vary alot and is generally irrelevant.

Pellet fit in the breech is not an indication of an oversized barrel.

Where the pellet fits in the breech is the leade. The leade is usually tighter than the majority of the barrel. About two inches from there there's a breech choke that sizes down the pellet. After that the barrel opens up. There should be light contact with the rifling until it gets to the muzzle choke. The muzzle choke is about the last inch or so of the barrel. It's purpose is to basically straighten and stabilize the pellet before it leaves the barrel. Weihrauch uses this design across all calibers. You can verify this by slugging any Weihrauch barrel with a pellet.

I'm not going to say that I've worked on a ton Weihrauch 22s but I can tell you the only oversized barrel I've had was a brand new covid era 20 caliber barrel from Chambers in the the UK. The accuracy was fine but it was low on power. The pellet would lose barrel contact in the last few inches before the muzzle choke. Weihrauch warranteed the barrel. The new one made roughly one fpe more than the other. Accuracy was about the same.

I think that 22 caliber Weihrauchs prefer H&N FTT more because of their rigid skirts. I believe these guns prefer RWS pellets over JSBs for the same reasons. Thin JSB skirts seem to work well in smaller calibers. My 177 Weihrauchs love them. The few 22s I've owned and worked on never liked JSBs. The JSBs never made good energy and seldom printed as well as the FTTs.

I think the oversized Weihrauch 22 barrel legend is greatly exaggerated by people that don't understand the designs and or don't experiment with the right pellets. Fwiw my "defective" 20 caliber barrel might have been salvagible had I reemed the breech choke larger or had a better selection of available pellets. Also I had two bad 177 caliber barrels on sequentially numbered Hw77SEs. No caliber is immune to rare defects.

 

[Keene]

Skirt size surely determines when and how the pellet gets moving in the barrel, as well as the pellet dynamic as it leaves the choke. Too big a skirt would logically mean a slower start/exit and bouncier piston, too small a skirt and more blow by, an overall slower pellet, and slammy cycle. I have had some JSB pellets in .22 that were really quite loose in my 95 leade and barrel, and that were far slower across the chrony, and harsher to shoot, than tighter fitting and heavier H&N pellets.

I recall reading a Pyramyd Air blog post that identified one of the major differences between H & N and JSB pellets was that H & N pellet head size made them more barrel specific than JSBs, and JSB skirt size made their pellets more flexibly useful in a wider range of barrels.