Ajviljoen260rem wrote: Sun Jan 16, 2022 9:07 am Dale, wat dink jy kan die oorsaak wees ( high burnrate)?
Many reasons.
Bullet in rifling being my first thought.
Case trim length too long
Carbon ring
Incorrect chrony reading
etc etc
Waar le die node vir reloder 26?
Providing that you have established where the excessive burn rate has originated from
Safe node at approximately 46.8 grains Rel 26
3060 fps at 50 000 psi
Groete
Hulp op QL asb
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Re: Hulp op QL asb
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Re: Hulp op QL asb
AJ, omdat ek ook 108gr ELDM uit my 243 RPR wil skiet het ek ook die berekening met RL22 gedoen. Dit staaf Dale se bevindings en ek het dadelik aan TPL gedink.
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Ajviljoen260rem
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Re: Hulp op QL asb
Dale SH wrote: Sun Jan 16, 2022 9:15 amAjviljoen260rem wrote: Sun Jan 16, 2022 9:07 am Dale, wat dink jy kan die oorsaak wees ( high burnrate)?
Many reasons.
Bullet in rifling being my first thought.
Case trim length too long
Carbon ring
Incorrect chrony reading
etc etc
Waar le die node vir reloder 26?
Providing that you have established where the excessive burn rate has originated from
Safe node at approximately 46.8 grains Rel 26
3060 fps at 50 000 psi
Groete
Dale, kan ek maar tpl korter maak en weer n skoot of twee gaan skiet met n550 en kyk wat hy maak??
Is daar dalk n laer node met reloader 26 rondom 2900 give or take?
Groete
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Re: Hulp op QL asb
As die sprong na die lande baie kort is dan kan 'n korter TPL dalk help. Kyk wat jy kry as jy so 1 na 2mm korter gaan.
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Re: Hulp op QL asb
Why would you want to run on a lower node when the predicted pressure at 3060 fps is only 50 000 psiAjviljoen260rem wrote: Sun Jan 16, 2022 10:44 amDale SH wrote: Sun Jan 16, 2022 9:15 amAjviljoen260rem wrote: Sun Jan 16, 2022 9:07 am Dale, wat dink jy kan die oorsaak wees ( high burnrate)?
Many reasons.
Bullet in rifling being my first thought.
Case trim length too long
Carbon ring
Incorrect chrony reading
etc etc
Waar le die node vir reloder 26?
Providing that you have established where the excessive burn rate has originated from
Safe node at approximately 46.8 grains Rel 26
3060 fps at 50 000 psi
Groete
Dale, kan ek maar tpl korter maak en weer n skoot of twee gaan skiet met n550 en kyk wat hy maak??
Is daar dalk n laer node met reloader 26 rondom 2900 give or take?
Groete
A lower node may be borderline pressure for good bullet obturation/expansion and you may battle with high ES and accuracy.
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Re: Hulp op QL asb
tripodmvr wrote: Sun Jan 16, 2022 11:18 am As die sprong na die lande baie kort is dan kan 'n korter TPL dalk help. Kyk wat jy kry as jy so 1 na 2mm korter gaan.
Hallo oom driepoot,
Ek vannd gou n 3 gelaai met tpl wat 1mm korter is dat ek kan gaan skiet oor labradar en kyk wat hy maak. Ek laat weet sodra ek klaar geskiet is, wat my bevindinge is.
Groete
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Ajviljoen260rem
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Re: Hulp op QL asb
Ek sal graag die ackley stadiger wil skiet om tekyk of die loop lewe nie bietjie beter gaan wees nie. Of dit wel so gaan wees weet ek nie. Ek weet daar is ander faktore wat ook n rol speel by loop leeftyd.Dale SH wrote: Sun Jan 16, 2022 11:23 amWhy would you want to run on a lower node when the predicted pressure at 3060 fps is only 50 000 psiAjviljoen260rem wrote: Sun Jan 16, 2022 10:44 am
Dale, kan ek maar tpl korter maak en weer n skoot of twee gaan skiet met n550 en kyk wat hy maak??
Is daar dalk n laer node met reloader 26 rondom 2900 give or take?
Groete
A lower node may be borderline pressure for good bullet obturation/expansion and you may battle with high ES and accuracy.
As ek hom wel hier om en by 2920/2950fps kan skiet sal sy kalabrasie baie naby aan een van die ander gewere ook wees wat hom teen 2930 skiet(strelok)
Ek gaan gou more weer n lading skiet met n550 wel met 1mm korter tpl en kyk wat hy gaan maak.
Dankie sover vir julle insette. Word waardeer
Groete
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Re: Hulp op QL asb
Hy jok hy is bang vir recoil, Adriaan hoekom skiet jy nie N165 in daai AI nie?
Jy gaan teen selfde spoed skiet met n lekker vol dop koel kruit, N550 is hard op n loop
Jy gaan teen selfde spoed skiet met n lekker vol dop koel kruit, N550 is hard op n loop
A child of five would understand this. Send someone to fetch a child of five.
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Re: Hulp op QL asb
Spoed op sy eie, is nie noodwendig 'n aanduiding dat 'n loop vinnig gaan verweer nie. Met die koms van QL, GRT en "borescopes", het dit vir ons 'n beter begrip gegee van hoekom 'n loop verweer.
Druk, bereken deur die spoed te meet en te kalibreer tov die lading, gee 'n baie beter aanduiding van looplewe.
Almal weet dat 'n 308 gemaklik 3 000 skote kan lewer teen 52 000 psi.
'n .243 wat 'n 87 grein koeël teen 3 200 vps skiet, is naby 61 000 psi en 1900 tot 2000 skote is op die kaarte.
Ek het op my 24 duim .243 Ai HOWA, amper 2900 skote gekry voor my agterwereld gejeuk het. 'n 87 V-max teen 3100 vps het maar teen 45 000 psi gestap.
My punt is, Probeer 'n stadiger kruit, wat 'n voller dop sal gee en teen 50 tot 52 000 psi, gaan jy sommer lank met daai loop skiet.
Druk, bereken deur die spoed te meet en te kalibreer tov die lading, gee 'n baie beter aanduiding van looplewe.
Almal weet dat 'n 308 gemaklik 3 000 skote kan lewer teen 52 000 psi.
'n .243 wat 'n 87 grein koeël teen 3 200 vps skiet, is naby 61 000 psi en 1900 tot 2000 skote is op die kaarte.
Ek het op my 24 duim .243 Ai HOWA, amper 2900 skote gekry voor my agterwereld gejeuk het. 'n 87 V-max teen 3100 vps het maar teen 45 000 psi gestap.
My punt is, Probeer 'n stadiger kruit, wat 'n voller dop sal gee en teen 50 tot 52 000 psi, gaan jy sommer lank met daai loop skiet.
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Re: Hulp op QL asb
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Ajviljoen260rem
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Re: Hulp op QL asb
Hallo Dale en oom driepoot.
Tpl68.4mm
N550 38.5
2959fps
27 grade toe ek geskiet het.
Groete
Tpl68.4mm
N550 38.5
2959fps
27 grade toe ek geskiet het.
Groete
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Ajviljoen260rem
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Re: Hulp op QL asb
Ander vraag wat ek het is, as ons nou oorgaan na rel 26 of n165 toe gaan daar genoeg dop kapasiteit wees met n korter tpl se maar van 68mm?
Groete
Groete
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Dale SH
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Re: Hulp op QL asb
Your burn rate has come down a bit but is still high.
38.2 or 38.3 grains for 2946 fps will put you on the node.
54000 psi and your case fill is +-82%
You can do better with a slower burning powder.
38.2 or 38.3 grains for 2946 fps will put you on the node.
54000 psi and your case fill is +-82%
You can do better with a slower burning powder.
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Re: Hulp op QL asb
Yes there is enough capacity for Rel 26Ajviljoen260rem wrote: Mon Jan 17, 2022 6:28 pm Ander vraag wat ek het is, as ons nou oorgaan na rel 26 of n165 toe gaan daar genoeg dop kapasiteit wees met n korter tpl se maar van 68mm?
Groete
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Re: Hulp op QL asb
Dale baie dankie,
Waar moet ek begin met rel26 met tpl 68.4mm?
Waar moet ek begin met rel26 met tpl 68.4mm?
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Re: Hulp op QL asb
46.0 grains
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Re: Hulp op QL asb
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Ajviljoen260rem
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Re: Hulp op QL asb
Dagsê Dale, ekt toe besluit om oor teskakel rel 26 weereens. Ekt gou woensdag middag gaan skiet net om spoed tekyk.
45.4 rel 26
3030
3039
3057
3051fps
Kan jy asb vir my kyk?
Groete Adriaan
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Ajviljoen260rem
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Re: Hulp op QL asb
Ajviljoen260rem wrote: Sun Feb 20, 2022 5:49 pm
Dagsê Dale, ekt toe besluit om oor teskakel Rel 26 weereens. Ekt gou woensdag middag gaan skiet net om spoed tekyk.
45.4 rel 26
3030
3039
3057
3051fps
Kan jy asb vir my kyk?
Ek waardeer
Groete Adriaan
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- tripodmvr
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Re: Hulp op QL asb
Ek weet nie waar Dale wegkruip nie, maar hier is my poging.
45,6gr vir 3055vps by die loop. Druk dui op 51K psi wat goeie ontbranding sal verseker.
45,6gr vir 3055vps by die loop. Druk dui op 51K psi wat goeie ontbranding sal verseker.
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Ajviljoen260rem
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Re: Hulp op QL asb
tripodmvr wrote: Wed Feb 23, 2022 12:00 pm Ek weet nie waar Dale wegkruip nie, maar hier is my poging.
45,6gr vir 3055vps by die loop. Druk dui op 51K psi wat goeie ontbranding sal verseker.
Dankie oom 3Poot,
Ek waardeer
Groete A
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Ajviljoen260rem
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Re: Hulp op QL asb
Hierdie is op 200m geskiet. Dankie oom 3poot. Dink hys darm nou reg vir aksie. Sal meskien weer gaan toets net om sekerheid tekry en tebevestig.
Last edited by Ajviljoen260rem on Sun Feb 27, 2022 1:12 pm, edited 1 time in total.
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Re: Hulp op QL asb
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Re: Hulp op QL asb
Dit lyk baie goed - skut het sy kant gebring. Het jy spoed gemeet?
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Ajviljoen260rem
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Re: Hulp op QL asb
Ongelukkig nie spoed gemeet nie. Sal wel as ek weer gan seker maak oor lading.tripodmvr wrote: Sun Feb 27, 2022 2:43 pm Dit lyk baie goed - skut het sy kant gebring. Het jy spoed gemeet?
Groete Adriaan
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