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Thread: Testing a conventional approach to load development

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gimp Testing a conventional... 01-07-2024, 08:04 PM
Micky Duck So you are slowly coming to... 01-07-2024, 08:20 PM
gimp Thank you, but I have always... 01-07-2024, 08:28 PM
Micky Duck Awesome. We can definitely... 01-07-2024, 08:47 PM
STC do I get this right? it... 01-07-2024, 09:01 PM
gimp 55 by my count, but I ran out... 01-07-2024, 09:26 PM
STC sorry was not intending to... 01-07-2024, 09:31 PM
gimp Can you explain what value... 01-07-2024, 09:32 PM
STC I was pointing out the irony... 01-07-2024, 09:38 PM
Shamus_ gimp I like your work here... 01-07-2024, 09:40 PM
gimp It's immeasurably damaged.... 01-07-2024, 09:41 PM
STC Ill see if i can find some... 01-07-2024, 09:57 PM
Shamus_ None the guy is a troll just... 01-07-2024, 09:39 PM
No.3 So, just to chuck a variable... 01-07-2024, 10:08 PM
Tentman If you take a look at... 01-07-2024, 10:12 PM
gimp I'm interested to test for... 01-07-2024, 10:15 PM
7mm tragic I may be wrong, however if my... 01-07-2024, 10:42 PM
Gkp Thanks - great write up. 01-07-2024, 10:26 PM
RUMPY I'm not a reloader, although... 01-07-2024, 10:35 PM
chainsaw Thanks gimp for sharing your... 01-07-2024, 10:42 PM
gimp Technically I believe the... 01-07-2024, 11:24 PM
Micky Duck Why bother??? To show that... 02-07-2024, 09:33 AM
Tentman It would be interesting to... 01-07-2024, 10:56 PM
No.3 I suspect the only way this... 02-07-2024, 09:19 AM
STC Other factors that have not... 02-07-2024, 09:31 AM
gimp 4x 5rd groups actually. ... 02-07-2024, 10:20 AM
Trout By the number of deer in the... 02-07-2024, 12:53 PM
gimp Yeah both of mine are full.... 02-07-2024, 12:54 PM
STC Barrel cooling does matter,... 02-07-2024, 08:47 PM
gimp Ok so there are several... 03-07-2024, 08:42 AM
6x47 Have no idea of the basis for... 03-07-2024, 09:27 PM
gimp Can you provide some sources... 02-07-2024, 12:33 PM
No.3 Short answer for 5 round... 02-07-2024, 01:32 PM
Micky Duck Right so I do believe there... 02-07-2024, 09:31 AM
gimp What level of precision is... 02-07-2024, 10:25 AM
grandpamac Greetings gimp and all, A... 02-07-2024, 09:56 AM
Micky Duck I did seven months ago and... 02-07-2024, 10:29 AM
SPEARONZ Cool thread This is by no... 02-07-2024, 11:36 AM
trooper90 As a very average shot not a... 02-07-2024, 11:50 AM
Makros I have non-hunting and non... 02-07-2024, 12:09 PM
Floundering Around Thanks gimp for this post.... 02-07-2024, 12:48 PM
Pop Shot My initial thoughts too, but... 02-07-2024, 01:05 PM
Sika 8 :roll: When will you grow up... 02-07-2024, 02:58 PM
PerazziSC3 I think you might be missing... 02-07-2024, 04:30 PM
Tentman Nailed it! As for shooter... 02-07-2024, 04:57 PM
No.3 All good if it's not... 02-07-2024, 05:29 PM
gimp I'm not sure about shooter... 02-07-2024, 06:14 PM
gimp How much muscle fatigue would... 02-07-2024, 02:18 PM
No.3 Muscle fatigue is a... 02-07-2024, 03:18 PM
Micky Duck Susan Boyle anyone??? 02-07-2024, 04:45 PM
Tahr Im a 3 shot sight in guy but... 02-07-2024, 05:01 PM
Pop Shot Yeah, I didn't think of like... 02-07-2024, 05:12 PM
stug Makes me feel good about my... 02-07-2024, 06:06 PM
7mm tragic I've been mucking around for... 02-07-2024, 07:06 PM
Ground Control I’m following this thread... 02-07-2024, 07:49 PM
gimp I do have a suspicion that... 02-07-2024, 07:52 PM
gimp It certainly has no bearing... 02-07-2024, 07:55 PM
Ground Control I agree with that to a point... 02-07-2024, 08:28 PM
Ground Control Well that just adds to the... 02-07-2024, 08:27 PM
gimp The most logical explanation... 02-07-2024, 08:29 PM
Makros So, just like pretty much all... 02-07-2024, 08:43 PM
STC There are just too many... 02-07-2024, 08:50 PM
Makros Would appear to me that many... 02-07-2024, 09:03 PM
Tentman Haha, yup they like kidding... 02-07-2024, 09:17 PM
gqhoon Whether they have the best... 02-07-2024, 08:41 PM
Tentman Hey STC you should come along... 02-07-2024, 10:01 PM
Dicko It might not be fatigue from... 02-07-2024, 11:13 PM
Tentman Interesting. I only know... 02-07-2024, 11:19 PM
Dicko Testing a conventional... 02-07-2024, 11:31 PM
Sidetrack “1. Define your requirements... 02-07-2024, 11:37 PM
gimp Is there any evidence of... 03-07-2024, 06:46 AM
grandpamac Greetings gimp, I do... 03-07-2024, 09:46 AM
Sidetrack In a nutshell, that’s the... 03-07-2024, 10:09 AM
gimp Common sense still applies.... 03-07-2024, 10:16 AM
Sidetrack Ignore this, can’t seem to... 03-07-2024, 10:29 AM
Micky Duck Two 270s get loaded for from... 04-07-2024, 11:41 AM
T.FOYE Being honest, i feel the two... 03-07-2024, 07:53 AM
caberslash Validates my process which is... 03-07-2024, 08:40 AM
gimp The stress-test of the way I... 03-07-2024, 08:43 AM
gimp Thank you. Your velocity... 03-07-2024, 09:55 AM
Makros Well this is entirely another... 03-07-2024, 10:41 AM
grandpamac Greeting gimp and all, First... 03-07-2024, 11:55 AM
caberslash Sorry gimp if I missed this,... 03-07-2024, 10:10 AM
gimp No, started with a fouled... 03-07-2024, 10:13 AM
NewbieZAR I load 10 shots, each at an... 03-07-2024, 10:36 AM
gimp "pressure signs" on brass are... 03-07-2024, 10:37 AM
NewbieZAR I think knowing your rifle... 03-07-2024, 10:56 AM
Ground Control After reading through the... 03-07-2024, 12:41 PM
gimp For those interested in... 03-07-2024, 06:58 PM
Makros gimp I don't doubt your... 04-07-2024, 11:57 AM
gimp The targex group I have the... 04-07-2024, 12:05 PM
Makros Funnily enough, with these SD... 04-07-2024, 12:34 PM
Roarless20 Brilliant insight into the... 05-07-2024, 09:51 AM
gimp Either of those is of course... 03-07-2024, 08:11 PM
Hugh Shields Bloody hell! Detailed and... 04-07-2024, 01:29 AM
andyanimal31 The more you know the less... 04-07-2024, 06:25 AM
Pop Shot Applies to pretty much... 04-07-2024, 09:01 AM
Tentman Gotta like science and... 04-07-2024, 12:20 PM
Makros Also, nothing wrong with your... 04-07-2024, 01:35 PM
gimp From a practical perspective... 04-07-2024, 01:53 PM
Tentman From another practical... 04-07-2024, 02:12 PM
Shamus_ This has so far been one of... 04-07-2024, 02:13 PM
Sidetrack Gotta love gun nerds!! It... 04-07-2024, 04:31 PM
Dama dama gimp thank you for spending... 04-07-2024, 06:05 PM
whanahuia I get a hint of confirmation... 05-07-2024, 09:24 AM
gimp The simplified approach. Same... 06-07-2024, 03:06 PM
BillyDixon I sort of agree with STC. ... 06-07-2024, 03:19 PM
chainsaw What’s the barrel length of... 06-07-2024, 03:20 PM
gimp This rifle is something like... 06-07-2024, 03:29 PM
Tentman Sometimes you just have to... 06-07-2024, 08:31 PM
Fisherman I'm a slow learner as... 06-07-2024, 09:09 PM
gimp That's the hunting accuracy... 06-07-2024, 09:14 PM
PerazziSC3 Is that numbering in order of... 06-07-2024, 08:49 PM
Tentman Nope. I just analysed them... 06-07-2024, 08:59 PM
dannyb Had a crack at a 20 round... 07-07-2024, 05:00 PM
gimp 100m or 100y? dannyb 08-07-2024, 11:43 AM
dannyb yards, of note the targets... 08-07-2024, 02:03 PM
Tentman And here is the latest... 21-07-2024, 08:42 PM
Hirahillbilly I just found this thread. Its... 20-11-2024, 06:09 AM
gimp I recently got a new rifle. I... 20-11-2024, 07:16 AM
gimp When I say I "picked a load",... 20-11-2024, 09:41 AM
Hirahillbilly Cool, thanks. Coincidentally... 20-11-2024, 11:28 AM
McNotty Thought I’d come back and... 14-02-2025, 02:16 PM
Stocky I managed to get to the range... 06-03-2025, 07:32 AM
gimp Please post up the data! Very... 06-03-2025, 07:59 AM
Stocky That's the plan. One thing I... 06-03-2025, 10:04 AM
Tentman A wee thought on this. The... 06-03-2025, 10:36 AM
gimp Sure, a reloading... 06-03-2025, 08:05 PM
Hunterdave Quite surprised theres not... 13-03-2025, 10:55 PM
Tahr Cortina's are so last year.... 14-03-2025, 09:39 AM
zimmer I stopped watching him ages... 14-03-2025, 10:12 AM
Hunterdave No just that any load can be... 14-03-2025, 01:18 PM
Tentman Show us your groups . . .... 14-03-2025, 03:21 PM
gimp Hunterdave The focus is on... 20-03-2025, 11:23 AM
Roarless20 Hunterdave Get ready for the... 14-03-2025, 09:19 AM
Kelton Admin please remove me 14-03-2025, 09:25 AM
Hunterdave Haha well they are at the top... 14-03-2025, 12:13 PM
McNotty I’ll change my mind when some... 14-03-2025, 11:24 AM
Hunterdave The podcast I watched did... 14-03-2025, 01:17 PM
Hunterdave https://youtu.be/rFI1DyaBwho?s... 14-03-2025, 05:26 PM
Micky Duck Requirements.....now there is... 20-03-2025, 11:48 AM
Hunterdave Good enough for what your... 20-03-2025, 02:41 PM
gimp All the more important to... 01-04-2025, 07:17 PM
inglishill Man, I just got shooters... 20-03-2025, 12:12 PM
Micky Duck That's why I dual load.... Or... 20-03-2025, 05:18 PM
inglishill Yeah, I definitely carry... 20-03-2025, 06:27 PM
gimp So I have a box of 68gr... 01-04-2025, 07:29 PM
gimp So - what now? 01-04-2025, 07:50 PM
whanahuia You pick the best group, and... 01-04-2025, 08:40 PM
earplay Speaking from experience, I... Yesterday, 10:25 AM
gimp So following the seating... 01-04-2025, 07:48 PM
Tentman Can't wait for the first bite... 01-04-2025, 07:52 PM
gimp Genuinely - advocates of... 01-04-2025, 07:58 PM
NZ_noddy Seriously, with only 47 left,... 01-04-2025, 08:26 PM
McNotty I’d love to see you load up... 01-04-2025, 09:02 PM
Roarless20 ^^ This would be great to... 02-04-2025, 08:20 AM
gimp Which seating depth would you... 02-04-2025, 10:27 AM
McNotty Let’s get some close to solid... 02-04-2025, 10:37 AM
caberslash 'Load development' is a hobby... 02-04-2025, 10:27 AM
gimp Shortest OAL you mean as the... 02-04-2025, 10:40 AM
McNotty Just chose it because it’s... 02-04-2025, 11:02 AM
gimp I am interested in doing the... 02-04-2025, 11:24 AM
gimp This figure comes from... 02-04-2025, 11:49 AM
Tentman My worst fears, Gimp is going... 02-04-2025, 11:12 AM
gimp The sacrifices I make, for... 02-04-2025, 11:16 AM
gimp All current shots fall within... 02-04-2025, 11:27 AM
Hunterdave Cool to see some results,... Yesterday, 06:32 PM
gimp To be clear the "changes"... Yesterday, 06:47 PM
  1. #11
    Member
    Join Date
    Mar 2022
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    Catlins
    Posts
    528
    “1. Define your requirements - what level of precision and velocity do you require? This requires sensible calibration of expectations - chasing smaller groups than most rifles can produce, and more speed than your chosen cartridge can generally produce, is perhaps not well-aligned to reality. Book max speed minus 15-50fps per inch for your actual barrel length is perhaps a good indicator of a realistic expectation for speed.
    2. Select the most appopriate powder and bullet based on reasonably wide research, using good quality components
    3. Load 10rd at a powder charge (within book data) that you predict will give the velocity target you'd like. It will be easier to be more precise in this estimate with more modern cartridges with lower variability in data. I suggest using more modern cartridges.“[/I]

    I may be missing something in the wording but what I read here is that, based on your conclusion, we throw out the convention of working loads up slowly as a safety measure to avoid excessive pressure in any particular rifle, a convention we hear ad nauseum, and just load up ten rounds and go for it. No mention of even loading just one and checking for excess pressure, which still seems wrong, before proceeding to load up another nine or is every rifle the same now and this is not an issue?
    “Age is a very high price to pay for maturity”

 

 

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