As iemand vir my kan loer sal dit gaaf wees.
Howa 22-250 Heavy Barrel 24" op die kop
Lapua Doppe, case length 1.900", 44.9gr H20
55gr Hornady VMax 22271 0.815" gemeet
N540 34.9gr
S is met silencer geskiet
Baie dankie, waardeer altyd die hulp
Howa 22-250 55gr V-Max N540 QL raad asb.
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Dale SH
- Hero Member

- Posts: 1730
- Joined: Mon Dec 02, 2013 9:02 pm
Re: Howa 22-250 55gr V-Max N540 QL raad asb.
What chrony did you use ?
C775 Pre B
Brno No 2 .22LR
Tikka LSA55 .243 Win
Voere 6.5x55
Brno ZKK600 Deluxe 7x57
Ruger 77MK2 30-06
Rossler Titan(6) 8X57JS
Brno No 2 .22LR
Tikka LSA55 .243 Win
Voere 6.5x55
Brno ZKK600 Deluxe 7x57
Ruger 77MK2 30-06
Rossler Titan(6) 8X57JS
- Dumbluck
- Hero Member

- Posts: 561
- Joined: Mon Sep 21, 2015 12:08 pm
Re: Howa 22-250 55gr V-Max N540 QL raad asb.
Sorry Labradar
These were the first loads after a pack of shop ammo through a new rifle.
I did the initial max COAL measurement with the cleaning rod and was a bit too cautious.
Today measured with Mamba and Max COAL is actually 2.473" instead of rough measurement of 2.400" so those are very far off the lands but still shot 15mm groups.
If it is close to a node we'll just load the rest of the 200 new cases with that load and then start proper load development after all the cases have been fireformed.
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Dale SH
- Hero Member

- Posts: 1730
- Joined: Mon Dec 02, 2013 9:02 pm
Re: Howa 22-250 55gr V-Max N540 QL raad asb.
Closest node is 35.4 grains for 3514 fps @ 51800 psi
With silencer off.
With silencer off.
C775 Pre B
Brno No 2 .22LR
Tikka LSA55 .243 Win
Voere 6.5x55
Brno ZKK600 Deluxe 7x57
Ruger 77MK2 30-06
Rossler Titan(6) 8X57JS
Brno No 2 .22LR
Tikka LSA55 .243 Win
Voere 6.5x55
Brno ZKK600 Deluxe 7x57
Ruger 77MK2 30-06
Rossler Titan(6) 8X57JS