22 Grendel improved

[Westex]

Well thx to Es350 for inspiring me to build 22 Grendel 40 degree , I received reamer from PTG and and already had barrel ready to go 24” Wilson 7 twist .750 gas block . 2” plus gas port . I drilled smaller gas port ,{ running suppressed } . Now time to get some loads worked up !

[Es 350]

Good to see someone else chamber this round!
Did you use a type one or type 'll bolt?

Look forward to your results...and pics.

[VASCAR2]

I’m curious what velocity you can get with the 40 degree shoulder. The 30 degree shoulder 22 Grendel get some pretty good velocity. I was more interested in a 22 Grendel than a 224 Valkyrie, might have been interesting to see if a SAAMI approved 22 Grendel would garner sales.

[Westex]

will get chrono out and see ! just got a few loads worked up with reloader 15 and 16 . will post results

[Huckleberry75]

Following this little conversation..

[Es 350]

will get chrono out and see ! just got a few loads worked up with reloader 15 and 16 . will post results

Any new data?

Replied to your email, Thanks for sending a copy of your reamer print.

My reamer has a shorter neck /shoulder blowed out .0263 further, .255 neck and a .135 free Bore.
As I mentioned in my thread , from what info I could find my reamer is basically a necked down 6mm Grinch.

[Westex]

Still working on loads ! 31.0 grains of 2000 MR. and 80.5 Berger is really performing great 3165 FPS and no pressure signs . Accuracy under 1” . So hot here that I am not really interested in shooting 107 * today ! Built a Tikka bolt action rifle with a 22-250 barrel I had for fire forming ,not sure of twist that factory has on Tikka stainless barrels but it works great for fire forming . I had to modify factory extractor on it for extraction but works great and also feeds great from magazine . Dang! another rifle to shoot and load for , will try some loads with 50 Bergers on it with some faster powder . Built my hunting buddy a rifle with same barrel ,Wilson 7 twist ,24” 2” plus gas tube , 750 gas block , my barrel not as heavy behind gas block but same length 24” .

[Es 350]

Awesome, good #'s with the 80.5's.
I have been so busy with work no time for shooting or anything else! Has been pretty warm here too!

I have a 8 twist blank I need to get turned down, threaded and chambered for a Ruger Grendel action.

Plan to modify the mag , clearence the magwell to get an 88gr above neck / shoulder junction.... but that would make it have pretty long jump with any other bullet.
So may throat it for 80's and 88's be where they end up.

[Smokin Joe]

Well thx to Es350 for inspiring me to build 22 Grendel 40 degree , I received reamer from PTG and and already had barrel ready to go 24” Wilson 7 twist .750 gas block . 2” plus gas port . I drilled smaller gas port ,{ running suppressed } . Now time to get some loads worked up !

Sir, may I ask what you are using for reloading dies for the .22 Grendel Improved?

Thx,

Joe

[CJW]

Western, I love AI cartridges. Cutting edge stuff..

[A.D.D. AR]

Smokin Joe, I'm guessing he used the chamber reamer to then make the sizing die.

[Klem]

Smokin Joe, I'm guessing he used the chamber reamer to then make the sizing die.

A.D.D.

Unlikely - Spent cases would not touch the sides and the neck would not hold a bullet. Cartridges need to be tighter than the chamber, especially in gas guns. And the neck definitely needs to be squashed tighter than the bullet.

[Es 350]

I machined a size die reamer and size die, use a hornady 22 cal seat die to seat bullets.

[A.D.D. AR]

I was wrong as usual, hehe. Es350- Machined your own reamers? that is a sweet skill to have! very cool. I would go broke playing around with different calibers haha .