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6.8mm SPC parent cartridge

MGYSGT

Silver $$ Contributor
Anybody know what the parent cartridge was or if it was designed from the ground up.

Tom
 
Thanks for the info. I was hoping to find a Savage bolt head to fit it. I neck them up to .30 and use them for Hunting with 110 V Max or 115 Bergers. Originally built a AR for Benchrest but couldn't get to the magic 3000 ish Fps. Still, it was the most accurate AR I have ever owned. Thought I would give it a try in a bolt gun.

Tom
 
Thanks for the info. I was hoping to find a Savage bolt head to fit it. I neck them up to .30 and use them for Hunting with 110 V Max or 115 Bergers. Originally built a AR for Benchrest but couldn't get to the magic 3000 ish Fps. Still, it was the most accurate AR I have ever owned. Thought I would give it a try in a bolt gun.

Tom

The case has a .420 diameter. For bolt heads, you may see it listed as 224 Valkyrie, which is the new fad based on the 6.8spc case.

The best brass I have found for the 6.8 is Sellier & bellot. Can buy primed virgin brass from Cavityback bullets website. Largest capacity and strongest case head. I have a current batch on its 9th or 10th firing and with loads over book max, primer pockets are still good, no split necks (annealed twice only), and no other major issues. I've been shooting the 6.8 in LR steel matches for the past 5 years.
 
Every time I get close to giving up on the 6.8 someone comes up with something else to save it from the axe, STOP IT please, now I have to waste some time and consider the 400 Thumper just sounds cool
 
It has gone over 3000 but had very short life span. Try 68forums for almost all things 6.8. Here's a pic of the first target on the last upper i built, i just wanted to see how it would group at that point. There are seven rounds in that hole, that gives you idea of what it can do.
 

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Anybody know what the parent cartridge was or if it was designed from the ground up.

Tom
You can use a PTG PPC savage bolt head , it'll work or you could open up a 223 and tinker with the extractor or use a 308 bolt head and use a long extractor that was used on some early long actions 223 savages . They are hard to find now .
6.5 Grendel will be the same as a PPC and should be available from savage
 
Every time I get close to giving up on the 6.8 someone comes up with something else to save it from the axe, STOP IT please, now I have to waste some time and consider the 400 Thumper just sounds cool

.400 thumper is not an existing cartridge, lol, just made it up. However, there is one person I know working with 6.8 basic brass and loading .400 bullets, I do not remember what he was calling it. I'll see what I can dig up on it later today.

I'm thinking chop a 6.8 basic at 1.5-1.6" and drop a 180gr hollow point in there over some H110 or something of that nature would be a helluva hog gun!
 
.400 thumper is not an existing cartridge, lol, just made it up. However, there is one person I know working with 6.8 basic brass and loading .400 bullets, I do not remember what he was calling it. I'll see what I can dig up on it later today.

I'm thinking chop a 6.8 basic at 1.5-1.6" and drop a 180gr hollow point in there over some H110 or something of that nature would be a helluva hog gun!

I do all sorts of stupid stuff any way, Yes I knew it was just a thought up cartridge, but a good one, so one more non existent cartridge that will be relative easy to make just begs to have me do it, probably wont even need a seizer made either, just a barrel for my contender made that is the only sticky point another 400 bucks for a barrel I will probably only shoot once in a while.... yes I did catch the 400 price tag and the 400 caliber. I had a SUNNYS 33 made last

Sunny
 
It was derived from the old 30 Remington, in a nutshell it's a rimless 30-30 Winchester. It's the same parent case for the 10MM and the 40 S&W pistol rounds.
 
I do all sorts of stupid stuff any way, Yes I knew it was just a thought up cartridge, but a good one, so one more non existent cartridge that will be relative easy to make just begs to have me do it, probably wont even need a seizer made either, just a barrel for my contender made that is the only sticky point another 400 bucks for a barrel I will probably only shoot once in a while.... yes I did catch the 400 price tag and the 400 caliber. I had a SUNNYS 33 made last

Sunny

Heres what it looks like...

FB_IMG_1570585897209.jpg
 
Went to PT&G and low and behold. They make a 6.8 bolt head for the Savage. Problem solved and only a short wait time to produce.
 

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