Well, 3400 ft/s was easily to achieve in this morning's test w/ 44.4 grains of VV N 160 w/ a Northern Precision Bonded 79 grain bullet. I had one shot low in velocity; One @ 3200 ft/s; two that were 3425 on the nose and one that didn't register( this one may have been greater than 4k ft/s which would account for that?????). Zero signs of any pressure issues @ all but if the average continues to hover around 3400, I am officially done @ 44.4 grains. But it continues to be a Tack Driver, even with Iron Sights & trying not to shoot the Sunshades off.... It maybe, well it is the flattest shooting trajectory platform that I have ever shot. To put it into context, it is just chewing up a Evaporated Milk Can @ 100 metres with open sights. I can post a foto if there is interest..
So are y'all saying just abandon the stamps on the guns & go with what everybody is using?
Hochachtungsvoll,
Raimey
rse
Raimey,
what do you mean by
"So are y'all saying just abandon the stamps on the guns & go with what everybody is using?"
There seems to be quite some variation in your velocity readings.
3400 fps is around 1040 m/s, and compared to your earlier
".... 44 grains of VV N160 w/ an 80 grain core bonded bullet by Northern Precision. Average velocity was 3125 ft/s(952.5 m/s) "
that's quite a jump for 0.4 grains more powder.
Once you see any pressure signs, pressure is way too high
