280 Rcbs improved quickload hulp

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shanenel
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280 Rcbs improved quickload hulp

Post by shanenel » Thu Nov 12, 2020 3:44 pm

Middag manne.
Ek vra hulp met my roer dit is n 280 rcbs improved basies n 280 ackley maar met 30 grade skouer.
Ek het gister deur crony gaan skiet op binnehuis baan.
Wapen besonderhede is as volg
26 duim loop 1:9 draai
Lading Norma doppe
162 gr Hornady eld m
Kruit H4831SC
Ek het 57 gr gegooi.
Drie skote het as volg gemeet
1 2838
2 2846
3 2840
Ek het gemerk dat die slagdoppies kraters vorm waar slagpen tref.
Niks ander druk indikasies is opgemerk nie.
Ge vuurde Doppe se H2O is daarna gemeet 72,4 72,1 71,8
Ek het data gebruik vanaf Nosler se website vir die 280 avkley met 160 grein punt.
Volgens die data het ek n dopvulling van 91%
Is daar n ander dryfmiddel wat my beter dop vulling kan gee.
Dk het geloer na RL22 Norma MRP,Selfs gewonder oor somchem S361.
As iemand my op quickload kan buhulpsaam wees sal ek wardeer.
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Reloader270
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Re: 280 Rcbs improved quickload hulp

Post by Reloader270 » Thu Nov 12, 2020 4:54 pm

Watse slagdoppie gebruik jy?

tripodmvr
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Re: 280 Rcbs improved quickload hulp

Post by tripodmvr » Thu Nov 12, 2020 5:17 pm

Gelaaide TPL en waarmee is spoed gemeet?
.22 Krico, Howa 223 Varminter, 243 AI Musgrave RSA, Ruger RPR 243, P14 - 7 x 64, BSA 303 Sporter, 375 H&H Musgrave, 30-06 Ruger No. 1A, Khan O/U 12br, Norinco O/U 12br

shanenel
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Re: 280 Rcbs improved quickload hulp

Post by shanenel » Thu Nov 12, 2020 7:31 pm

Naand manne
Gelaaide tpl is 89 mm
Het cci 200 primers gebruik

shanenel
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Re: 280 Rcbs improved quickload hulp

Post by shanenel » Thu Nov 12, 2020 7:32 pm

Spoed was met n chrony chronograaf gemeet hy was 5 metet van tromp geplaas

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Re: 280 Rcbs improved quickload hulp

Post by Dale SH » Thu Nov 12, 2020 7:39 pm

Your burn rate is well above what it should be and all indications are that your bullet is in or very close to the rifling.
Your MV is probably about 80 - 90 fps higher than it should be.
Did you measure the jump at your very long TPL of 89.0mm
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Gawie(13mm)
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Re: 280 Rcbs improved quickload hulp

Post by Gawie(13mm) » Thu Nov 12, 2020 8:03 pm

Ek stem saam met Dale. Erens knyp iets.
Dont make expensive noise! Make the first shot count!

shanenel
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Re: 280 Rcbs improved quickload hulp

Post by shanenel » Thu Nov 12, 2020 8:50 pm

Ek sal die tpl meet tot teen die rifling maar as ek reg onthou het die kamer n vryboor.Dink die jump is amper 1mm indien nie meeEk sal bevesti

Dale SH
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Re: 280 Rcbs improved quickload hulp

Post by Dale SH » Thu Nov 12, 2020 9:01 pm

How did you get the chrony to read accurately at an indoor shooting range. Did you have an artificial lighting kit on the chrony ?
C775 Pre B
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shanenel
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Re: 280 Rcbs improved quickload hulp

Post by shanenel » Thu Nov 12, 2020 9:21 pm

Yes is it does have artificial lights

shanenel
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Re: 280 Rcbs improved quickload hulp

Post by shanenel » Fri Nov 13, 2020 7:26 am

Ek het my max tpl tot teen lande gemeet dit gee my 90.55 mm,die kamer jet n lang vryboor lyk dit vir my

tripodmvr
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Re: 280 Rcbs improved quickload hulp

Post by tripodmvr » Fri Nov 13, 2020 10:01 am

Met die' spesifieke koeël en dryfmiddel kombinasie gaan 2804vps en 56gr dryfmiddel jou naby Node 5 uitkry.
.22 Krico, Howa 223 Varminter, 243 AI Musgrave RSA, Ruger RPR 243, P14 - 7 x 64, BSA 303 Sporter, 375 H&H Musgrave, 30-06 Ruger No. 1A, Khan O/U 12br, Norinco O/U 12br

shanenel
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Re: 280 Rcbs improved quickload hulp

Post by shanenel » Fri Nov 13, 2020 10:28 am

Dankie wat sal die dopvulling wees en is daar n ander dryfmiddel waarna ek kan loer.
Waar le die volgende node en hoe lyk die kamerdruk

tripodmvr
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Re: 280 Rcbs improved quickload hulp

Post by tripodmvr » Fri Nov 13, 2020 11:14 am

Dopvulling 93% met 56gr lading. Volgende node is vêr oor 60K psi.

VV N560 - 2890vps op veilige node
Norma MRP - 2910vps
RL26 - 2940vps
.22 Krico, Howa 223 Varminter, 243 AI Musgrave RSA, Ruger RPR 243, P14 - 7 x 64, BSA 303 Sporter, 375 H&H Musgrave, 30-06 Ruger No. 1A, Khan O/U 12br, Norinco O/U 12br

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