elkaholic
Well-Known Member
Exactly!
338-375 Ruger Demon
- Thread starter rigmaster10
- Start date
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Yes, that is correct. I've edited my Post #83. Point being, there's only a single supplier of those casings (Hornady), and the quality is substandard.
That question falls in elkaholic's realm of specialty. I'm very happy with my 8x68S brass, fireformed to the 30/375 SI chamber dimensions. I consider the RWS brass to be slightly stronger in the case head, with a little better dimensional uniformity - compared to the Norma 8x68S brass.
But either RWS or Norma spanks the Hornady 375 Ruger brass for quality and consistency, based on my limited experience to date. Beware that some magnum bolt faced actions will not extract the 8x68S cases reliably - or at all. Need to confirm this as a go or no-go before purchasing 8x68S cases. My action (BAT Hunter Repeater) is extracting without any problems/issues.
elkaholic
Well-Known Member
I haven't had time to do any follow up. As phorwath said though, the brass is much better and extraction is still unproven? My BAT seems to work well also. If I we're building with options, I would just have the bolt opened to the 8x68 spec.
jasent
Well-Known Member
I'm running a howa action and plan to try the 8x68 brass
Cold Trigger Finger
Well-Known Member
I'm going to give 300 Win brass a try in my 375 Ruger. Not because I don't like the Hornady brass. Mostly because it will be nice to have another source of brass the next time brass supply gets all screwed up.
With my Hornady die the expander button opens the neck of the 300 brass up in 1 pass.
As my rifle is a Guide Gun with controlled feed . Fireforming is pretty easy. Plus I set the shoulder with the die . So it should headspace great on the shoulder.
If it works out well I'll report back.
With my Hornady die the expander button opens the neck of the 300 brass up in 1 pass.
As my rifle is a Guide Gun with controlled feed . Fireforming is pretty easy. Plus I set the shoulder with the die . So it should headspace great on the shoulder.
If it works out well I'll report back.
You do understand that the belt is the only thing on a 300wm that is the same size as the 375 Ruger? The body of a 300wm case below the belt is .513 not .532 like a Ruger.
Also the 8x68 is about .010" under the size of a 375 Ruger case t the base. RWS 6.5x68 Schuler brass in my improved chamber is almost identical in capacity to my 6.5-300wm cases. I can't imagine you not losing quite a bit of capacity using the 8x68 in a 30-375 SI. The 375 Ruger is about 8grs more capacity then a 300wm.
Also the 8x68 is about .010" under the size of a 375 Ruger case t the base. RWS 6.5x68 Schuler brass in my improved chamber is almost identical in capacity to my 6.5-300wm cases. I can't imagine you not losing quite a bit of capacity using the 8x68 in a 30-375 SI. The 375 Ruger is about 8grs more capacity then a 300wm.
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Isn't the capacity of the fire formed 8x68S case in the 30-375 SI the pertinent comparison to Hornady 375 cases formed to 30-375 SI?
I don't understand the significance of the comparison of capacities of the unadulterated parent brass, when the internal volume of the parent case will be enlarged to the wildcat cartridge dimensions???
Am I missing something?
elkaholic already measured the capacities of the 30-375 SI with the Hornady 375 Ruger, Norma 8x68S, and RWS 8x68S parent cases. Very little difference between the three.
But big difference in strength and consistency, based on my initial experiences.
Here's a picture of the 8x68s case on the left and a 375 Ruger case on the right to give some scale to folks not really familiar with it. Once fireformed the 8x68s works well for Ruger based wildcats if you're able to work around the smaller diameter rim.
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Are you going to do a SI version of this?
Swampr42
Member
Good to see this thread getting revived yet again.
Yorke and Jasent both inspired me to build a 338-375 Ruger. I actually bought my reamer from AZshooter. My build was based off a savage action. So far I've had great luck with 76.5 gr of H4350 and 250gr Accubonds, average speed was 2912fps over 5 shots and 3/4" at 100. I've put 40 or so rounds down the barrel but have some more loads ready. I tried 250gr Berger Elite Hunters 20k off the lands and the groups and speeds were all over the place. I have them loaded touching the lands now and 2k off so we will see how they do.
Yorke and Jasent both inspired me to build a 338-375 Ruger. I actually bought my reamer from AZshooter. My build was based off a savage action. So far I've had great luck with 76.5 gr of H4350 and 250gr Accubonds, average speed was 2912fps over 5 shots and 3/4" at 100. I've put 40 or so rounds down the barrel but have some more loads ready. I tried 250gr Berger Elite Hunters 20k off the lands and the groups and speeds were all over the place. I have them loaded touching the lands now and 2k off so we will see how they do.
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Overkill338
Well-Known Member
It's already been made, yearrrssss ago. It's called the .338 Campfire.
