10-10-2023, 01:28 PM
I'm not a VV expert, so I did come searching...
Rifle shooter mag website has some info that could help...
The 135 you mention is similar to I-4064 according to these guys, which would be too slow and too granualr for the smaller case grendel.
Look for something more in line with IMR 8208xbr for example, or maybe H335. N133 may be a better choice.
[URL="https://www.rifleshootermag.com/editorial/vihtavouri-powder-reloading-data/372672"]
I also found the VV data for Grendel online...
this is separated by tab marks, it is in table form in the VV load data:
Bullet 7,0 g / 108 gr Lapua, Scenar C.O.L. 57,1 mm / 2.248 inch
Powder Starting load Maximum load
Type Weight Velocity Weight Velocity
[g] [grs] [m/s] [fps] [g] [grs] [m/s] [fps]
N130 1,40 21.6 671 2201 1,69 26.1 791 2595
N133 1,51 23.3 689 2260 1,80 27.8 804 2638
N530 1,44 22.2 690 2264 1,73 26.7 821 2694
Vihtavouri Powder Reloading Data - RifleShooter (rifleshootermag.com)[/URL]:
[FONT="]"Lets start with the 100 series. As mentioned, its a single-base powder. The lower the number, the faster the burn. According to the burning rate chart in the companys 2019 Reloading Guide, N130 is similar in burn rate to Hodgdon BL©-2 and Alliant Reloder 10X. The N133 I mentioned has a burn speed similar to IMR 8208 XBR and Hodgdon CFE-223."
[/FONT]
Rifle shooter mag website has some info that could help...
The 135 you mention is similar to I-4064 according to these guys, which would be too slow and too granualr for the smaller case grendel.
Look for something more in line with IMR 8208xbr for example, or maybe H335. N133 may be a better choice.
[URL="https://www.rifleshootermag.com/editorial/vihtavouri-powder-reloading-data/372672"]
I also found the VV data for Grendel online...
this is separated by tab marks, it is in table form in the VV load data:
Bullet 7,0 g / 108 gr Lapua, Scenar C.O.L. 57,1 mm / 2.248 inch
Powder Starting load Maximum load
Type Weight Velocity Weight Velocity
[g] [grs] [m/s] [fps] [g] [grs] [m/s] [fps]
N130 1,40 21.6 671 2201 1,69 26.1 791 2595
N133 1,51 23.3 689 2260 1,80 27.8 804 2638
N530 1,44 22.2 690 2264 1,73 26.7 821 2694
Vihtavouri Powder Reloading Data - RifleShooter (rifleshootermag.com)[/URL]:
[FONT="]"Lets start with the 100 series. As mentioned, its a single-base powder. The lower the number, the faster the burn. According to the burning rate chart in the companys 2019 Reloading Guide, N130 is similar in burn rate to Hodgdon BL©-2 and Alliant Reloder 10X. The N133 I mentioned has a burn speed similar to IMR 8208 XBR and Hodgdon CFE-223."
[/FONT]
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