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August 11, 2018, 10:05 AM
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#1 |
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Member
Join Date: September 5, 2016
Posts: 58
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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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August 11, 2018, 12:40 PM
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#2 |
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Senior Member
Join Date: February 19, 2018
Location: Centerville, OH
Posts: 347
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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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August 12, 2018, 02:48 PM
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#3 |
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Member
Join Date: September 5, 2016
Posts: 58
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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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August 14, 2018, 08:35 PM
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#4 |
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Senior Member
Join Date: October 14, 2014
Posts: 394
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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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August 23, 2018, 11:08 AM
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#5 |
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Member
Join Date: September 5, 2016
Posts: 58
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September 3, 2018, 04:25 PM
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#6 |
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Member
Join Date: September 5, 2016
Posts: 58
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September 11, 2018, 12:49 AM
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#7 |
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Member
Join Date: September 5, 2016
Posts: 58
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September 22, 2018, 11:51 AM
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#8 |
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Member
Join Date: September 5, 2016
Posts: 58
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September 22, 2018, 10:31 PM
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#9 |
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Senior Member
Join Date: April 15, 2018
Location: Baton Rouge - Louisiana
Posts: 406
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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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September 25, 2018, 08:52 AM
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#10 |
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Staff
Join Date: March 4, 2005
Location: Ohio
Posts: 21,060
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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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Gunsite Orange Hat Family Member CMP Certified GSM Master Instructor NRA Certified Rifle Instructor NRA Benefactor Member and Golden Eagle |
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September 25, 2018, 09:58 PM
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#11 |
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Member
Join Date: September 5, 2016
Posts: 58
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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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September 26, 2018, 04:48 PM
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#12 |
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Staff
Join Date: March 4, 2005
Location: Ohio
Posts: 21,060
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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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Gunsite Orange Hat Family Member CMP Certified GSM Master Instructor NRA Certified Rifle Instructor NRA Benefactor Member and Golden Eagle |
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September 27, 2018, 01:26 PM
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#13 |
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Member
Join Date: September 5, 2016
Posts: 58
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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 Last edited by rklapp; September 28, 2018 at 02:02 PM. |
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September 30, 2018, 01:57 PM
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#14 |
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Member
Join Date: September 5, 2016
Posts: 58
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October 21, 2018, 04:20 PM
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#15 |
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Member
Join Date: September 5, 2016
Posts: 58
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October 21, 2018, 05:13 PM
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#16 |
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Staff
Join Date: March 4, 2005
Location: Ohio
Posts: 21,060
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I don't think the slow motion video is so mysterious. The main difference appeared to me to be the amount of bypass gas that got around the bullet before it got to the throat. He may have had the boattail seated with more bullet jump and perhaps with the help of the boattail shape itself, got more bypass gas preceding the bullet. If he developed a load for each that had the bullet jamming the throat that bypass gas would go away.
Note that I had to remove two of your images as they copy copyrighted materials. See the board policy on posting copyrighted materials. You can link people to such data on its own site or write the relevant data for single loads as text if the quantity is not so great as to challenge fair use protection.
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Gunsite Orange Hat Family Member CMP Certified GSM Master Instructor NRA Certified Rifle Instructor NRA Benefactor Member and Golden Eagle |
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October 25, 2018, 02:36 PM
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#17 |
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Member
Join Date: September 5, 2016
Posts: 58
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I usually seat to magazine length in the ARs. I don't remember if I ever did measure the headspace in the ARs. Time to break out the Dremel.
The 5.56 is considered a varmint barrel and seems to like the varmint style bullets (no boat tail). The AK and Mosin bullets all seem to lack BT also. Of course, the 6.5 CM rifle all have the BT. I don't recall what the images were. My recent happenings... https://ronsreloading.wordpress.com/...tober-24-2018/ |
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November 12, 2018, 04:07 PM
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#18 |
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Member
Join Date: September 5, 2016
Posts: 58
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November 19, 2018, 03:01 PM
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#19 |
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Member
Join Date: September 5, 2016
Posts: 58
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November 19, 2018, 07:47 PM
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#20 |
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Senior Member
Join Date: March 1, 2009
Posts: 4,232
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excellent grouping with the Noslers and that is first AK47 I have ever seen that I would like to have sitting in my gun safe
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“How do I get to the next level?” Well, you get to the next level by being the first one on the range and the last one to leave.” – Jerry Miculek |
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November 27, 2018, 04:15 AM
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#21 |
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Member
Join Date: September 5, 2016
Posts: 58
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I decided on the VEPR after watching the IV8888 melt down video. It may not be as accurate as an AR but it's built like a tank.
Hope everyone had a Happy Thanksgiving... https://ronsreloading.wordpress.com/...ember-25-2018/ |
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November 27, 2018, 08:13 AM
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#22 |
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Senior Member
Join Date: August 23, 2011
Location: Phoenix AZ, Kealakekua HI
Posts: 100
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I grew up in Paauilo and and since 1960 have had my place on Kealakekua Bay. Been a pig and Axis deer hunter and reloader for 60+ years. Nice to see you Oahu posting and your blog.
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December 21, 2018, 12:30 PM
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#23 |
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Member
Join Date: September 5, 2016
Posts: 58
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January 14, 2019, 02:05 PM
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#24 |
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Member
Join Date: September 5, 2016
Posts: 58
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January 27, 2019, 12:49 AM
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#25 |
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Member
Join Date: September 5, 2016
Posts: 58
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