Aluminum Tipped Bullets from Goergia by Greyghostt

[MagMan]

300 SMK on the left 280 Henson on the right.

[royinidaho]

Hmmmmm, cute

SMKs out of mine at 27xx FPS into an 8" wall of blow sand (very fine) at 200 yds penetrates about 5". A 3 shot group will pass through though, if the sand is at all moist.

The remains looks absolutely devastating, no fragmenting, just one heck of a hunk of shrapnel.

I only had 6 of the AL tips and loaded them so that a loaded round could be ejected. I don't know how far back they were. For all practical purposes, the single 3 shot group I shot after using 3 to get the correct powder charge, went just a bit bigger than what is expected of the SMKs. Just under 0.7 MOA @ 200 yds.

Average velocity for the 3 shot group was 2896 FPS with a bigger ES than I want. Was using US-869

I'll have 100 on the way next week.

[Lightvarmint]

Originally Posted by MagMan

300 SMK on the left 280 Henson on the right.

Nice photo........ Looks like a .768 and a .878 to me.

James

[edge]

I assume that the 180 grain will be the lightest 30 cal, if so how long is it and what is the absolute slowest twist @ 3000 fps that could be used?

Thanks, looks very interesting.

edge.

[Lightvarmint]

Hello,

We have not shot them in anything slower than a 10" twist and they stabilize well in that twist. The bullet length is basically the same as the 240 SMK which has a BC of .711. Due to differences in the drag functions of the nose of the SMK as compared to the Georgia bullet, the Georgia version should have a higher BC. We will know for sure in the next two weeks or sooner.

I think there is a website out there that can calculate required twist based on some measurments. If anyone knows of it let me know and I will take the measurements and find out what the math indicates.

James

[Mikecr]

Post the measurements and I can calc it.
Need:

Length
NoseLength
BearingLength
BoatTailLength
EndDiameter
MeplatDiameter
Weight
Cal

[Lightvarmint]

Originally Posted by Mikecr

Post the measurements and I can calc it.
Need:

Length
NoseLength
BearingLength
BoatTailLength
EndDiameter
MeplatDiameter
Weight
Cal

Hello,

You have an incoming private messege

James