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Old August 11, 2018, 10:05 AM   #1
rklapp
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My Reloading Adventures/misadventures

I created a blog to highlight my reloading tests over the past couple years. I posted my trip to the range yesterday.

https://ronsreloading.wordpress.com/
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Old August 11, 2018, 12:40 PM   #2
markr6754
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Eh, aloha bra! You must be shooting at Koko Head rifle range. I’ve never been, but I recognized the silhouette of Koko Head from your June 17 blog.

I took my family to Hanauma Bay in June and we could hear the range activity from the upper parking lot/bay lookout.
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Old August 12, 2018, 02:48 PM   #3
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Aloha,
Yes, Kokohead is awesome. They have a peculiar 5-round rule in the magazines but allow steel targets. Thanks for visiting.
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Old August 14, 2018, 08:35 PM   #4
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I love dark side of the moon too man, I'll have to try the music-as-a-mantra trick. Thanks for sharing!
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Old August 23, 2018, 11:08 AM   #5
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Pre-hurricane trip to the range.

https://ronsreloading.wordpress.com/...ugust-22-2018/
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Old September 3, 2018, 04:25 PM   #6
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My latest happenings...

https://ronsreloading.wordpress.com/...tember-2-2018/
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Old September 11, 2018, 12:49 AM   #7
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Had a weird malfunction with the AR-15...

https://ronsreloading.wordpress.com/...tember-9-2018/
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Old September 22, 2018, 11:51 AM   #8
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More good results with Varget.

https://ronsreloading.wordpress.com/...ember-21-2018/
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Old September 22, 2018, 10:31 PM   #9
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Can't say I've ever seen a .223 case with dents like that. Have you gotten any more feedback on that one off your 9/2018 post?
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Old September 25, 2018, 08:52 AM   #10
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He didn't state clearly that he knew the case was his; just that it was in the brass he was sorting. But the diagnosis is correct: unburned powder in the chamber. That's a good sign the powder is too slow for the bullet weight and not burning consistently, as it likely spilled out of a case while it was extracted. Using powders that are too slow can lead to ringing the barrel, so if it were my case I'd be looking at something faster. Maybe Reloader 10X or Benchmark or H322. I've used Varget with 77-grain SMK's without issue, but never tried it with anything lighter in 223.
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Old September 25, 2018, 09:58 PM   #11
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Thanks for the info. The Varget has been crazy accurate for me with the 62gr along with CFE223. I'll watch out to see if I get more of these poppers (for lack of a better term of the bullet leaving powder behind in the barrel).
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Old September 26, 2018, 04:48 PM   #12
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The pressure issue that causes ringing doesn't necessarily cause inaccuracy. It's an odd effect where the slow burn of the powder lets a too-light bullet scoot forward faster than the powder can make gas to keep up initially, but as the burn progresses it catches up, shoving a lot of gas mass down the bore where it rear-ends the bullet faster than it can be further accelerated. The excess pressure that results is momentary and tries to bulge the barrel outward. This results in a traveling wave from the pressure sight that goes back down the barrel. A standard pressure transducer or even a copper crusher won't detect it because the wave moves them, too. But a strain gauge sees the metal expanded by the traveling wave. The Pressure Trace instrument can see them, therefore.

Scroll down that page and look at the 7 mm STW and the .223 load shown and the nasty apparent pressure (actually the wave stretching the steel) that you see. A wave as big as the first of those two plots show came from a very high-pressure event down the bore a bit. Texas Gunsmith Charlie Sisk has actually blown the muzzles off 338's with a load that exhibited an extreme secondary hump like that. It takes him about 10 rounds, but they go.
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Old September 27, 2018, 01:26 PM   #13
rklapp
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Would be interesting to see what pressure this produces. Haven't seen any pressure signs so far. Fortunately, it's a bull barrel so might help. Nosler says the 23.5gr is most accurate but doesn't list pressures. Hodgdon data does.

The ringing theory links are interesting. Another confounding factor is the difference between a boat tail and flat base bullets.
https://www.youtube.com/watch?v=ZDUL_1vrABI
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File Type: jpg IMG_3878 (2).jpg (223.3 KB, 6 views)
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Last edited by rklapp; September 28, 2018 at 02:02 PM.
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Old September 30, 2018, 01:57 PM   #14
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I'm off to the Honolulu Gun Show...

https://ronsreloading.wordpress.com/...ember-29-2018/
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