OK, so I am struggling to understand the difference between N140 and N540 can anyone explain please?
Is it just the burn speed?
N140 -N540
Moderator: dromia
Forum rules
All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.
Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.
Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
Re: N140 -N540
In the N100 series the burning rate decreases as the type number increases.
burning rate
N110=100
N120=85
N130=70
N133=69
N135=63
N140=58
N150=56
N160=50
N165=47
The 500 series are high energy powders
N540=56
N550=53
N560=42
Its all explained in the vitavouri re loading manual.
burning rate
N110=100
N120=85
N130=70
N133=69
N135=63
N140=58
N150=56
N160=50
N165=47
The 500 series are high energy powders
N540=56
N550=53
N560=42
Its all explained in the vitavouri re loading manual.
Re: N140 -N540
Vihtavuori powders.
Lapua recommends Vihtavuori powders for reloading. The selection covers more that 20 different types – a right choice for all disciplines, guns and shooting styles.
Vihtavuori reloading powders
•Are manufactured by highly qualified employees of EURENCO Vihtavuori Oy in Laukaa, Finland
•Ensure clean burning and repeatable shooting properties in all weathers and conditions
•Have uniform and superb quality based on full control of the whole production chain beginning from the production of nitrocellulose to the bottling of the end product
•Strict quality acceptance limits have helped reloaders and cartridge manufacturers to achieve similar loads regardless of the production lot for more than 85 years
•Have achieved a strong position among top class shooters around the world
•Are available with 26 different powder types, which can be divided to four different product families:
N100 series
The N100 series powders are single base powders used mainly in rifle calibers. There are ten N100 series powders with different burning rates and suitability from the .17 Remington up to the .458 Winchester Magnum and two special powders for .50 BMG
N300 series
The N300 series powders are single base porous powders for handguns. There are altogether nine handgun powders with different kind of shooting properties and suitable applications
N500 series
The N500 series powders are impregnated extruded rifle powders with Nitroglycerol added as extra energy component. If higher loading densities and more energy are needed, N500 series powders are competent alternatives for the N100 series powders. N500 series High Energy powders are available in five different burning rates
Vihtavuori Tin Star Premium Powder
This porous powder fills the case much better than most conventional smokeless propellants, providing the loading density needed for those classic black powder cartridges. R
Lapua recommends Vihtavuori powders for reloading. The selection covers more that 20 different types – a right choice for all disciplines, guns and shooting styles.
Vihtavuori reloading powders
•Are manufactured by highly qualified employees of EURENCO Vihtavuori Oy in Laukaa, Finland
•Ensure clean burning and repeatable shooting properties in all weathers and conditions
•Have uniform and superb quality based on full control of the whole production chain beginning from the production of nitrocellulose to the bottling of the end product
•Strict quality acceptance limits have helped reloaders and cartridge manufacturers to achieve similar loads regardless of the production lot for more than 85 years
•Have achieved a strong position among top class shooters around the world
•Are available with 26 different powder types, which can be divided to four different product families:
N100 series
The N100 series powders are single base powders used mainly in rifle calibers. There are ten N100 series powders with different burning rates and suitability from the .17 Remington up to the .458 Winchester Magnum and two special powders for .50 BMG
N300 series
The N300 series powders are single base porous powders for handguns. There are altogether nine handgun powders with different kind of shooting properties and suitable applications
N500 series
The N500 series powders are impregnated extruded rifle powders with Nitroglycerol added as extra energy component. If higher loading densities and more energy are needed, N500 series powders are competent alternatives for the N100 series powders. N500 series High Energy powders are available in five different burning rates
Vihtavuori Tin Star Premium Powder
This porous powder fills the case much better than most conventional smokeless propellants, providing the loading density needed for those classic black powder cartridges. R
Re: N140 -N540
Have a read this should answer your question.
http://www.lapua.com/en/products/reload ... ading-data
http://www.lapua.com/en/products/reload ... ading-data
Who is online
Users browsing this forum: Google [Bot] and 2 guests