Vihtavuori Powders - FN FiveseveN Forum

Vihtavuori Powders - FN FiveseveN Forum

Posted by Esteves

That's great news.

Simple test: pull a few unfired SS192/195 bullets and reload w/ 6.5 grains of True Blue and the original projectiles. Chrono alongside unmodified SS192/195. (Or, am I missing something? I are not an expert.)

Posted by Medula Oblongata

Bullet: Hornady 35grn VMax
Brass: 2x fired FN 03
trim length: 1.128 - 1.132
Charge weight: 6.5grns True Blue
OAL length: 1.4650
Primer: Winchester small rifle - Remington 6 1/2SR - Rem 7 1/2 SR BR

Higher pressure than factory, with some raised donut cratering of the primer. Brass ejects easily with no damage or hard extraction marks. Recoil is slightly heavier than factory, muzzle rapport is significantly louder with a 2' flame from the barrel. Not fun to shoot indoors.

Bullet: 40grn - Hornady VMax, SIerra BlitzKing and FBHP, Nosler Ball tip
Brass: 2 - 3x fired FN 03
Trim length : 1.128 - 1.132
Charge weight: 6.3grns True Blue
OAL length: 1.5855
Primer: same as above

Brass is similiar to what is described above, pressure slightly less. Didn't own a chrono when I worked these up, so I don't know what the velocity is. I was never concerned with velicity, but accuracy and reliability (and safety).

Incidentally, the factory SS192/195 have 6.5grns of powder charged into the case. I felt these to be conservative charges and could be safely increased a fair amount. I also have been quite vocal in the past insisting that the factory powder appeared to be (visually and by weight testing) True Blue, and with this conformation I feel vindicated