No. The cocking slot is significantly smaller on the 3400 due to the compound lever, the D34's is much longer. There is also different inletting to the compound cocking lever bearing that rides within the stock. This isn't my pic, but this is a side by side of the cocking levers that someone else posted on an earlier thread
Quote from: Denby95 on September 09, 2022, 09:46:30 PMNo. The cocking slot is significantly smaller on the 3400 due to the compound lever, the D34's is much longer. There is also different inletting to the compound cocking lever bearing that rides within the stock. This isn't my pic, but this is a side by side of the cocking levers that someone else posted on an earlier threadBummer, I'm a big fan of compound cocking linkages. I believe that the extra wood where the slot is helps dampen vibration. -Y
...Perhaps there were other German produced 12 land barrels though that were fitted to these blocks that look exactly like Diana barrel blocks.
Quote from: Denby95 on September 09, 2022, 03:10:42 PM...Perhaps there were other German produced 12 land barrels though that were fitted to these blocks that look exactly like Diana barrel blocks.This.22 Terrus has 12 lands and says made in Germany.
Thanks for your input, Hector. I like my 3400 .177 very much, it’s very accurate. I would like to know how to lighten the trigger, though.
Theres certainly one difference in that trigger. The 3400's trigger is not hollow or plastic. It's a solid piece of metal, and ferrous since its magnetic. I think I recall the marketing boasting somewhere about 'a metal trigger' even too. I've been most curious to break it down and see whether it uses a Diana piston or a Walther piston. The receiver with the riveted scope rail is clearly Diana.I'm also still curious on the barrel. Hector, you said that Walther rifles are 12 lands, and this has a 12 land barrel. However the barrel block appears identical to that of a D34, including the 'jimping' machining on the top, the shape, the corners etc. However its not quite as precise or cut quite as cleanly as the D34's and there are some rough 'sanding' like marks in the finish of the 3400's.
Hector,Interesting to think of things that way. That umarex would have done similar designs to emulate the look of a 34.I'd been going more upon the assumption they just took what spare parts they had that had enough compatibility it could be thrown together as a single unit. That nothing was specifically ordered or created to make these guns but it was a means for getting rid of surplus parts.