Quick Change barrel parts

[shoots100]

After many trials and tribulations over the last year, my Machinist/Coyote hunting friend and I were able to finally finish the quick change barrel kit for our Impulse predator rifles.
I've been using my rifle for all of the R/D + load testing.
I have close to or over a thousand rounds total of 243/ 260 through the rifle and it's holding up great so far and it's still shooting sub MOA with the 6mm 68 grain berger flat base target and 139 grain match burners in the 260.
I black/blued the parts for weather resistance, but they didn't come out as dark as I wanted, but the finish is very durable.
The fourth pic is of the new extension after almost 200 rounds fired without cleaning and multiple barrel swaps.
I also designed a barrel nut with flats on it, so it can be manipulated with a big adjustable and that makes it easier to headspace using the barrel vise.
I set up two barrels (Factory, fluted.243/.260 Rem) with the kit and the carbon fiber with the factory extension, but with a new barrel nut and recoil lug.
It takes under two leisurely minutes to change barrels using one 1/8" Allen T handle.
I didn't torque anything, just tightened till it felt tight and haven't had any issues with it holding zero.
I'm done testing and have set my rifle up with the carbon fiber barrel in prep for the upcoming NY predator season.
Enjoy,
SJC
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[JASmith]

That is very encouraging for us wannabe Impulse shooters!

Keep us posted!

[Blue Avenger]

random thought.. can the adapter be made to accept large and small shank barrels?

[shoots100]

random thought.. can the adapter be made to accept large and small shank barrels?

The extensions we made will only fit small shank barrels.
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.

[Blue Avenger]

makes perfect sense, I have not seen one yet.

[shoots100]

makes perfect sense, I have not seen one yet.

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.

[shoots100]

random thought.. can the adapter be made to accept large and small shank barrels?

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

[gbflyer]

Very nice.

[shoots100]

Had two sets professionally black oxide treated to see if it was worth doing and it was.

[RooksR6]

I'd be willing to entertain one or two of these when you figure them out. Been thinking about swapping my 308 to a 6RemAI. Would love to discuss further

[shoots100]

I'd be willing to entertain one or two of these when you figure them out. Been thinking about swapping my 308 to a 6RemAI. Would love to discuss further

All figured out and tested.
Never shot a 6RemAI, but it has a .473 rim dia, so it should be good to go with the .308 bolt head.
What model Impulse do you have ?
You might be restricted to single shot use in the Predator model if the OAL is to long to fit in the magazine.
SJC

[E6Chevron]

shoots100,
You've done a great job with this mission and also with the pictures and descriptions of the challenges and solutions.

My compliments to you for this effort, that is helping/educating all of this community.

Has Savage made Impulse barrel extensions available as a separate part yet?