Hulp op QL asb

[Ajviljoen260rem]

Op 100m

[Ajviljoen260rem]

Dit lyk nog mooi tot dusver,

Dankie Dale,

Ek gaan die naweek bietjie verder skiet. Ek sal weer hier kom post.

Groete

[Ajviljoen260rem]

Hallo Dale,

Ek is nou uit 108 eldm. Hulle het my mooi hanteer, maar ek gaan nou oorskuif 103 eldx.

Le die node presies op 3100fps met 103 eldx?

Wat is begin lading wat ek kan skiet om QL tekalibreer? Dit lyk vir my of 46.3 veilig sal wees on teskiet.

Groete

[Ajviljoen260rem]

243Ackley
683mm loop
103 eldx
Cci 200
56.3dop vol lapua
70.5mm tpl

Reloader 26

Groete

[Dale SH]

243Ackley
683mm loop
103 eldx
Cci 200
56.3dop vol lapua
70.5mm tpl

Reloader 26

Groete

Start at 46.5 grains.
Highest potential node is predicted to be at 3300 fps @ 59500 fps using default burn rate.

[Ajviljoen260rem]

Hallo Dale, ekt gou vanmidag gaan skiet
Lading 46.3
3041fps
3043
3047
3057
3096??

Ek wil hier iewers by 3080-3150 wees as daar node is.

Groete

[Dale SH]

Closest Node is 46.9 grains
3086 fps and you idling at 46050 psi
Node 4 is the big jump to 3300 fps and +-59000 psi

[Dale SH]

The theoretical half node is +-48.6 grains for 3200 fps @ 52250 psi.
You can try it.
I haven't convinced myself yet on the half node theory.

[Ajviljoen260rem]

Dankie Dale,

Ek sal die vol node van 46.9 n probeer slag gee en kyk wat hy maak.

Wil mens noodwendig die ackleys teen n sekere druk skiet?( warm kant)?

Groete

[Dale SH]

The 243 Ackley is a Wildcat cartridge and as such does not have a SAAMI accreditation.
Therefore the max pressure rating is given as 55000 CUP, and while there is no direct conversion to PSI the estimated max pressure in PSI would be in excess of 60 000 psi.
I can not say for sure if shooting at 60 000 psi will reduce your case life or not but I can say for sure that shooting at 3300 fps is definitely going to shorten you barrel life in comparison to 3080 fps.

[Ajviljoen260rem]

Teen 3300 sou dit lekker gewees het met lekker lang loop lewe, maar ongelukkig sal dit nooit soo wees nie.

Ek gaan hou by 3086 en kyk wat hy maak.

Baie dankie vir jou moeite,

Groete

[Dale SH]

Try the half node/compromise and see if it works for you.

[Ajviljoen260rem]

Ek gaan dit def n try gee net om tekyk hoe hulle lyk. My loop is baie na aan klaar inelkegval soo twyfel of dit gaan saak maak aan my.


Ek sal die toets vir jou doen en jou laat weet

[Ajviljoen260rem]

Hallo Dale, ekt gou vanmiddag gaan skiet.
Dit was 19grade celcius toe ek geskiet het.
Lading 46,9
3085
3100
3103


Sal nou foto plaas van teiken. Dit was op 220m geskiet.


Groete

[Ajviljoen260rem]

46.9

[Ajviljoen260rem]

Rooi steep moet aan onder kant wees on teiken reg telees.

Groete

[Dale SH]

46.8 grains will put you exactly on the node.
I'm not sure if the 0.1 grains is going to make any difference to your accuracy.
Where you comfortable with the one shot that is a little further away from the other 2 ?
It looks like about 3/4 inch group.

[Ajviljoen260rem]

Thanx Dale,

Ek sal n paar gaan laai en weer gaan skiet. Sal sommer die keer bietjie met tpl’e speel en kyk hoe maak hulle dan.

Ek was gemaklik met die al die skote. Ek gaan wel silencer of brake nou opsit, so kan meskien bietjie beter gaan dan.

Groete

[Dale SH]

Sorry I missed the part where you shot at 220 meters.
That is a very decent group at that distance.

[Ajviljoen260rem]

Hopenlik kan hy nog beter. Ek sal gou more kyk wat hulle maak met brake of silencer en hier kom post.

Ekt self vir n oomblik gedink ek sal meer moet begin skiet, net sodat jy kan dink ek skiet oraait

[Ajviljoen260rem]

N550 is too fast for your combo of bullet weight and barrel length
Reloder 26
Viht N560
Norma MRP
All the above will give you far better case fill, MV and lower pressure on the node.

Hallo Dale,


Waar sal die node met n560 le met 103 eldx?

Groete

[Dale SH]

N550 is too fast for your combo of bullet weight and barrel length
Reloder 26
Viht N560
Norma MRP
All the above will give you far better case fill, MV and lower pressure on the node.

Hallo Dale,


Waar sal die node met n560 le met 103 eldx?

Groete

With default burn rate for N560
45.1 grains for 3025 fps @ 46000 psi
? grains for +- 3260 fps @ 59000 psi

[Ajviljoen260rem]

Hallo Dale, kan jy weer vir my loer as j n tydjie het asb.

243 ackley
108 eldm
Dop vol 56.32
Loop lengte 661mm
Cci200
Tpl 69.4mm
N550
Lading 39.5
Spoed 3043fps labradar(27 degrees outside)
Ek sal graag( if there is one) by 2920-2960fps node wil skiet. Soek n rustige landing.
Dankie vir al jou moeite

Groete Adriaan

[Dale SH]

Hallo Dale, kan jy weer vir my loer as j n tydjie het asb.

243 ackley
108 eldm
Dop vol 56.32
Loop lengte 661mm
Cci200
Tpl 69.4mm
N550
Lading 39.5
Spoed 3043fps labradar(27 degrees outside)
Ek sal graag( if there is one) by 2920-2960fps node wil skiet. Soek n rustige landing.
Dankie vir al jou moeite

Groete Adriaan

AJ

These figures are so out of kilter that they make no sense.
Your burn rate is so ridiculously high as to be unbelievable.
You currently running at 62000 psi and a predicted case fill of +-83.5%
The lower node with your current data is 37.0 grains for 2900 fps, 52000 psi and your case fill would be +- 78%
If these figures are to be believed I would not continue with load development as this effectively means that this powder is burning like S 355 and is basically unsuitable.

[Ajviljoen260rem]

Dale, wat dink jy kan die oorsaak wees ( high burnrate)?

Waar le die node vir reloder 26?

Groete