Hello All!
The foundry delivered a shipment of quality control castings yesterday with the machining steps completed. 17 adapters were sent for quality control checking, and overall quality again was remarkable. In test fitting to several test guns (a 870 wingmaster and an 870 express), two minor issues were uncovered. The first one was that the 0.25inch 28tpi threaded hole was not tapped to full depth. This is easily remedied and will only require a phone call to take care of in future production runs.
The second issue relates to extremely tight tolerances where the adapter mates with the shotgun's trigger group. On the wingmaster, all the adapters fit with no issues. On the 870 express however, the plastic trigger guard was just so slightly wider that things were too tight and the adapter did not fit properly. With approximately 20 minutes of work, I made the appropriate modifications with removal of just the smallest amount of material and hand fit all 17 adapters to the 870 express. The permanent, long term fix to the second issue will require re-tooling of one of the plugs that make up the master precision investment mold, however I've decided to proceed for now with this mold as is and hand fit each adapter until the burden of doing so justifies the incremental expense of re-tooling.
This effectively gives the green light to the first main production run and e-mails for those on the *reserved list* will be going out shortly!
For those interested, deer season is coming up quick and while trying to stop chewing out my fingernails waiting for the quality control adapters to arrive, I've been tweeking and playing with my slug gun quite a bit. I recently acquired a rifled remington slug barrel, and am still stunned at how accurate it is when fed either sabboted or brenneki slugs! I re-finished the whole nine yards last weekend (it was pretty ugly before!) with Gun Kote, the results of which you can check out in the above photograph. I hope it wears as well as it prints!
(5 rounds at 50 yards.)
Techbrute: hmmm...a tan shotgun...you've got my gears turning (albeit slowly!) now! I'll save a couple of adapters from the black coating process...
Take care,
BrobeeBiter