22 nosler from 6.8spc - regrind reamer?

T

Travis224

New member
If I understand everything correctly, making 22 nosler brass from 6.8 SPC cases leaves the neck short, right? If so, why don't I get a reamer in 22 nosler reground to match the shorter neck and then it would literally mean interchangeable brass (besides the bolt face). Reason I'm looking at it this way is I bought a Bighorn action and it has swappable bolt faces so I can run any bolt face size I need to.

Anything else I'm missing here? I already have 2 Valkyrie bolt faced Tikkas and am looking at the bigger case for prairie dog shooting..
 
What is the advantage of doing that over a simple ole 22-250?

Check out Johny's reloading bench on youtube.(if you have time someday) He has a playlist for 22 Nosler.

He goes through the hole Hagar brass drill.
 
You could do that but why not just use 6 MM Hagar brass and make NOSGAR and get the whole enchilada for it? I know the 6.8 brass is prolific but you're going to need to spend a bunch of $$'s for the reamer and a barrel set back or a new one made up. It's going to involve a whole new throat design to boot. That throat depending on what chamber you currently have is going to take a lot to clean up.

Greg
 
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I guess that I was looking at the long term seeing the Hagar brass is made in runs and since I have 3 barrels I can convert with this reamer, I'd be ahead. Plus if it works out, I could even covert one of my 6x45s into a 6mm nosler(short) to gain a bit in velocity. 40$ for a reamer rental or $150 for a custom reamer that I keep...I was leaning towards a custom reamer. And Starline brass is near half price..
 
I suppose I'm confused here. You can't convert an existing 22 Nosler to a shorter neck with a reamer. You might as well just shoot short converted 6.8 brass and make sure you clean out any carbon build up in the neck. You will be adding about 0.078 free bore by doing that as you won't be addressing the throat.

Greg
 
Not a 22 nosler, but a 224 Valkyrie chamber would be cleaned up by a 22 nosler "short". A 223 would have to be set back a thread or 2 to fully clean it up.
 
Originally Posted By: Travis224Not a 22 nosler, but a 224 Valkyrie chamber would be cleaned up by a 22 nosler "short". A 223 would have to be set back a thread or 2 to fully clean it up.

Where the heck did the Valkyrie come into this? The thread says Nosler unless I'm mistaken.
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Greg
 
Oh yeah, sorry, I have 2 Tikkas with the 224 Valkyrie bolt face and 2 barrels that I would like to open up to the larger case. One reason for the effort of using 6.8 SPC brass. Then I have 2 .223 Tikkas with custom barrels that could be rechambered as well. Then I also have a Bighorn action with a .223 barrel and bolt face, and ordered the 224 valkyroe bolt face. So I have multiple chambering jobs if I find an easy "upgrade" so to speak. Lol, I didn't get into all this because I just thought if the reamer gave me a higher velocity performance in the guns I have and shoot now, I in essence would have 5 barrels to convert. Then if all that works, I might make a 6mm version to have some gains over my 6x45 and 6mm Valkyrie chamered rifles and corresponding barrels.
 
I haven't looked at the case tapets but I will. That being said while the process would get you some performance over the Valkyrie it really is a nothing burger except in the heaviest bullets over a 556 as the capacity is barely a grain more.

Going up in shoulder height will get you some more speed but the capacity is not going to gain a huge amount. The Nosler is pretty large thanks to the very thin walls of the brass. When we go NOSGAR we actually give up a bit but gain usable pressure. brass longevity and gain a skosh of higher usable pressure. Your 6.8 conversion will be very very close to the NOSGAR beyond a doubt depending on brass.

It will be a neat project. Having that many barrels to work over would certainly cut down on cost per change over. Keep us posted if you go that route.

Greg
 
Yeah, I'm rather experimental and [beeep] the Valkyrie is a fun project, I kinda jumped the gun and had a reamer made for necki g the 224V up to 6mm. It's a good case but until Lapua makes brass, I will lose primer pockets since I'm running the pressures right to the edge of what they will handle. I was looking at the increase of case capacity as a way to increase without exceeding pressures the cases cant take. Maybe I gain 200fps over the 22 Valkyrie/223 AI. I'm ok with that.
 


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