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204 testing

 
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  #22  
Old 04-19-2013, 08:52 AM
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Re: 204 testing

Quote:
Originally Posted by BrentM View Post
I will see if I can find some 7.5's and try them out. I don't recall what my Hornady book was using for primers but I have had good luck with Fed Match so that I was use. Not real scientific about it ha ha.

The only primer I had that was FLAT as the one with 33 grains of super. 32 seems fine. Hope to test some more tomorrow.


I also use pretty much nothing but Fed Match in rifles, pistols etc not so much

Let us know what you find Brent, I'm looking forward to it.


t
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  #23  
Old 04-19-2013, 11:44 AM
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Re: 204 testing

Remington primers have a "thicker" cup?

Please note that the thicker material is soft brass. That does not mean that they can take more pressure than other primers. The Russian Wolf primmer seems to have the toughest alloy if you want to take more pressure. The CCI 400 primers are slightly oversize and the most difficult to seat. CCI markets a primer to the "AR" fraternity, I think it is called 450 that is tough.

The .204 Ruger was designed way overbore to provide spectacular velocities without even coming close to the pressures of competitive varmint cartridges. The result is longer barrel life compared to .22-250, .17 Remington, .220 Swift, .224 WSSM. I use only HBN coated bullets so I do not produce the published velocities without exceeding the powder charges shown.

The .204 Ruger is a fast twenty caliber cartridge. I am currently assembling a .20 PPC. The .20 PPC has at most one more grain of capacity but I have chosen it for a longer neck. I hate the short neck of the .204 Ruger. It is not sufficient for partial sizing and centering the bullets in the chamber. I already have a Wilson sizer, seater and a Redding full length bushing die on hand.

If you want a fast twenty, build a .20 BR or .20 Dasher. I have nitrocarburized barrels on my twenties. You may be able to wear out a .20 BR barrel in a thousand rounds.
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  #24  
Old 04-20-2013, 05:09 PM
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Re: 204 testing

I didn't get to the store for primers before I headed out to shoot. It was windy today and felt like a waste of time. I am breaking in a new 260 so I decided to make the best of it.
My final work up for the day was 27.5 grains 4064 and 32 grains super. Went .095 off the lands and the loads seemed good.

Here is are the results at 200 yards, best I could do with the conditions.
Attached Thumbnails - Click to View Larger
204 testing-image.jpg  
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  #25  
Old 04-22-2013, 09:58 AM
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Re: 204 testing

That 4064 is looking pretty dern good!


t
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  #26  
Old 10-14-2013, 04:31 PM
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Re: 204 testing

Finally shot these loads through the chrono.

4064 was 3800 fps
super was 3600
4895 was 3700
Re-shot the Hornday and was getting 3650.

4064 is hands down the best of this group for powder choice. I was hoping for a bit more speed but it is not bad considering the short barrel on this model 110.
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  #27  
Old 10-14-2013, 04:43 PM
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Re: 204 testing

I'd say roll with it


I'd forgotten about this thread, thanks for following up.



t
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  #28  
Old 10-14-2013, 04:58 PM
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Re: 204 testing

LOL, me too. I had put the rifle away with so much other stuff going on. Decided I needed to get out and see what loads did FPS wise. I have a lot of 4064 so I will run with it.
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