Was recently asked for the lengths of some 7mm/.284" bullets so I thought I might as well post my results and others posted to the TC-L here as well.

Barnes 120 gr. SP - 1.105"
Barnes 140 gr. SP - 1.257"
Beartooth Bullets 140 gr. LFN GC, .934"
Hornady 139 gr. FP, .954"
Hornady 120 gr. SSP, .995"
Hornady 120 gr. SP - 1.007"
Hornady 139 gr. SP - 1.157"
Hornady 139 gr. SPBT - 1.138"
Nosler 140 gr. BallisticTip - 1.2575"
Nosler 120 gr. FPBT - 1.070"
Nosler 150 gr. BT - 1.307"
Nosler 150 gr. Partition- 1.200"
Sierra (Varminter) 100 gr. HP - .883"
Sierra 130 gr. SSP - 1.031"
Sierra 140 gr. SP - 1.110"
Sierra (GameKing), 140 gr Spitzer BT - 1.133"
Speer 130 gr. SPBT - 1.070"
Speer 160 gr. SP - 1.210"

Which brings up an interesting point, the Beartooth Bullets weren't supposed to come for some 4-6 weeks after I ordered them. Despite what they say on their website, they are apparently doing well enough to get these delivered within 2 weeks of the order. I'm very pleased with both the quickness the order was filled and the quality of the bullets. They are outstanding!

We also have this data courtesy of Allory Deiss. "Using the same calipers and bullets along with the Sinclair bullet comparer. This measures to a spot which should be where the rifling starts to contact the bullet, on a .284 bullet this is at .276. I also measured the two 100 grain bullets this time around. These are not careful averages of multiple measurements, but should give you an idea of what overall cartridge length would be if you know casehead to rifling leade."

Length Base- Datum-
Overall Datum Tip
Barnes 120 SP 1.105 0.558 0.547
Barnes 140 SP 1.257 0.692 0.565
Hornady 100 HP 0.880 0.357 0.523
Hornady 120 SP 1.007 0.468 0.539
Hornady 139 SP 1.157 0.540 0.617
Hornady 139 SPBT 1.138 0.562 0.576
Nosler 120 FPBT 1.070 0.454 0.616
Nosler 150 Btip 1.307 0.723 0.584
Nosler 150 Part 1.200 0.638 0.562
Sierra 100 HP 0.891 0.446 0.445
Sierra 130 SSP 1.031 0.498 0.533
Sierra 140 SP 1.110 0.574 0.536
Speer 130 SPBT 1.070 0.555 0.515
Speer 160 SP 1.210 0.669 0.541



Today has been mostly brass sorting and packing. Don't know what I'll do with it all...

Yeah, right!