VV N555 for 7mm-08

[Hunter 6.5]

Has anyone tried this powder in 7mm-08? Currently I use N140 with 120gr BT to great results but nothing good with 140gr and heavier pills

 

[GWP]

I use varget with 140s but n140 and n150 are not bad n150 works with 150s

 

[hw101]

I use n550 - 2800fps with eldx 150 grain

 

[Hunter 6.5]

I use n550 - 2800fps with eldx 150 grain

Yeah I am aware of n550 but don't know where n555 sitting in comparison. VV don't list any loads for 7mm-08 with n555 but doesn't necessarily mean it's not suitable, their data isn't the best anyway

 

[Malxwal]

Works a treat under 130-140gr bullets in Creedmoor, much n such case capacity, gives generally very good ES, worth a go.

 

[hw101]

Yeah I am aware of n550 but don't know where n555 sitting in comparison. VV don't list any loads for 7mm-08 with n555 but doesn't necessarily mean it's not suitable, their data isn't the best anyway

I’ve never tried n555 - very interested to hear your experiences!

 

[Hunter 6.5]

Works a treat under 130-140gr bullets in Creedmoor, much n such case capacity, gives generally very good ES, worth a go.

That is my thinking as well, but I didn't have the time and more importantly the advanced knowledge to start from scratch without any published data from manufacturer. Was hoping if some competitions shooters did sort of test loads. Mainly interested in this powder instead of N550 because it's regarded as more gentle for barrels (if it's not another speculation)

 

[Hunter 6.5]

I’ve never tried n555 - very interested to hear your experiences!

I don't have any experience, and wouldn't try even before some proof from more experienced shooters and reloaders that it works. If I get at any stage will let you know

 

[Malxwal]

@Laurie is your man for shooting 7-08 in competition. My experience of N555 is that it generally shoots low ES and gives good velocity, not wild. Downside is it's a bit dirty. I use it in Creedmoor under 135gr and 284w under 184gr, and previously in 243w under 103/107gr.
It should be easy enough to extrapolate a safe starting load from Viht data on comparable chambering

 

[Hunter 6.5]

@Laurie is your man for shooting 7-08 in competition. My experience of N555 is that it generally shoots low ES and gives good velocity, not wild. Downside is it's a bit dirty. I use it in Creedmoor under 135gr and 284w under 184gr, and previously in 243w under 103/107gr.
It should be easy enough to extrapolate a safe starting load from Viht data on comparable chambering

Thanks Malxwal this sort of information is helpful

 

[Malxwal]

If you give us more details like fired case H2O capacity and the bullets you're looking at running, it may be possible to assist via Quikload and general information referencing.

 

[Hunter 6.5]

If you give us more details like fired case H2O capacity and the bullets you're looking at running, it may be possible to assist via Quikload and general information referencing.

Currently I am working with 150gr eld-x. I had played with few different cases but settled on Norma 308win necked down. Will check water capacity tomorrow. Highly appreciate

 

[Laurie]

I gave N555 a try in 7-08 shortly after its arrival:

REACH OUT – EU COMPLIANT POWDERS PT4 BY LAURIE HOLLAND

That's in fairly heavy Lapua brass with the 160gn Sierra TMK in a custom long-throat chamber (2.95-inch COAL here) that sees charges increased by around 1.3gn for equivalent pressures to SAAMI chamber loads. Worked fine with large primer ignition, not very well in small primer brass.

 

[Hunter 6.5]

I gave N555 a try in 7-08 shortly after its arrival:

REACH OUT – EU COMPLIANT POWDERS PT4 BY LAURIE HOLLAND

That's in fairly heavy Lapua brass with the 160gn Sierra TMK in a custom long-throat chamber (2.95-inch COAL here) that sees charges increased by around 1.3gn for equivalent pressures to SAAMI chamber loads. Worked fine with large primer ignition, not very well in small primer brass.

Thanks a lot Laurie, I never even hopped for such a detailed information. I will read carefully everything tonight.
Many thanks
Miro