random thought.. can the adapter be made to accept large and small shank barrels?
random thought.. can the adapter be made to accept large and small shank barrels?
.223 Rem AI, .22-250 AI, .220 Swift AI .243 Win AI, .6mm Rem AI, .257 Rob AI, .25-06 AI, 6.5x300wsm .30-06 AI, .270 STW, 7mm STW, 28 nosler, .416 Taylor
The extensions we made will only fit small shank barrels.Originally Posted by Blue Avenger
Not much difference in small and large shank barrels, but the less meat on the extension, the less I would want to chamber a rifle in a larger magnum caliber, especially when the receiver is made out of aluminum.
We would need to see the 300WSM barrel extension to see the differences.
makes perfect sense, I have not seen one yet.
.223 Rem AI, .22-250 AI, .220 Swift AI .243 Win AI, .6mm Rem AI, .257 Rob AI, .25-06 AI, 6.5x300wsm .30-06 AI, .270 STW, 7mm STW, 28 nosler, .416 Taylor
I know the barrel parts we made are made with metal certified to handle almost four times the pressures of any cartridge that has a .473 or .532"" rim diameter.
The thinner barrel tenon and/or barrel extension needed to fit the .555 case diameter of the Wsm would need to be really tough to handle the high pressure and I think that's why we haven't seen a rifle chambered in Wsm yet.
Maybe their planning on making a larger action for the WSM type of cartridges.
Made out of something stronger than the 110 action? The barrel doesn't hold the cartridge pressure like it does on the 110 with the large shank?
BTW. Nice work on the components. Are you going to Post or PM drawings? :)
The Dunning-Kruger effect is alive and well.
The 110 receiver is made out of steel, the Impulse receiver is made out of thin Aluminum that's surrounding the steel barrel extension and barrel.
I wouldn't want to thin those parts to accommodate the large diameter WSM case.
Drawings won't help anyone that doesn't have the machinery and very costly carbide tooling needed to machine heat treated metal.
Not to mention the custom line up jigs needed to make the extension + lug and the expertise to get those jigs to mesh with the machines to create parts with less then 5 thousandths tolerances.
This wasn't plug and play and if I would've known the costly issues we were going to have to overcome before we started, I would've just bought a couple of rifles to get the parts and called it a day.
The factory barrel extension was hand fit to the lug, as the anodizing was removed in some places and it was like that before I shot the hell out of it.
Our parts are made to much closer tolerances and don't need to be hand fit.
That cost me a pretty penny and a lot of sleepless nights to accomplish.
There may be people on here that have the tooling for anything below 45 Rockwell C. If you used 4140 or anything with a commercial HT it is probably less than 35 RC. Holding .001" may not be an issue either.....I was thinking large shank for the WSM. Sorry to hear you got stressed out. Single pointing the threads is probably the hardest part. I always make a gauge when threading bores. Go on one end and no go on the other. I have been known to do an undersized one also to tattle tale when I am getting close. Not as hard but 416 may be a better option for what it is.Regardless, I really enjoyed seen the finished products.
The Dunning-Kruger effect is alive and well.
The barrel extension that fits in the Predator model is the same dimensions as the Elite Impulse chambered in 308, except it's threaded for large shank barrels.
The Elite rifles use large shank barrels.
The barrel extension wall thickness of the Elite 308 is really thin, but if Savage is selling the rifles, they must've tested them before shipping them out the door.
I would hope savage is going to make a larger sized action to fit a larger sized barrel extension for the 338 lapua chambered Impulse rifles.
SJC
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