I bought these bullets in September from Tom (Bang For Your Buck) on Gun Broker.
https://www.gunbroker.com/All/search?IncludeSellers=2201491 (https://www.gunbroker.com/All/search?IncludeSellers=2201491)
He was nice enough to package 250 each of both the 200 grain Gold Dots and the 200 grain HSTs in one small flat rate USPS box and keep the balance of both batches for himself. I measured the bullets and observed the following:
Gold Dots HSTs
Length Weight Length Weight
0.681 198.0 0.708 199.5
0.683 198.2 0.710 200.4
0.687 199.2 0.708 200.5
0.693 200.8 0.710 200.5
0.695 201.4 0.708 200.3
0.688 200.0 0.709 199.9
0.684 198.4 0.708 200.1
0.686 198.9 0.710 200.2
0.691 199.5 0.709 199.7
0.694 201.1 0.710 200.1
0.688 199.6 0.709 200.1 Average
Based upon our experience with the Cutting Edge 190 grain solid copper bullets, we were pretty sure 8.0 grains of CFE Pistol would push both of these into the high 1,100 fps zone.
https://10mm-firearms.com/reloading-10mm-ammo/cutting-edge-190-grain-copper-solid/msg85295/#msg85295 (https://10mm-firearms.com/reloading-10mm-ammo/cutting-edge-190-grain-copper-solid/msg85295/#msg85295)
The weights are close and the lengths are similar (0.725 for the Cutting Edge 190 grain solid copper). We loaded our shortened ladder of 7.5 and 8.0 grains of CFE Pistol using Winchester LPP and new *-* brass to a COAL of 1.255" (I just noticed I didn't include the COAL in the post about the Cutting Edge 190 grain solid copper).
Again, the test pistol was my G20SF with a StormLake 5.3" Ported Barrel. The average speed we observed was 1,176 fps for the Gold Dots and 1,160 fps for the HSTs. We're not sure why the Gold Dots went faster than the HSTs. Maybe because the HSTs weigh 0.5 grains more? ¯\_(?)_/¯
As always, use this information at your own risk, but the brass and primers both looked good. We think we'll standardize all three bullets at 8.0 grains of CFE Pistol and leave them there.
Shelton
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The 200 grain Gold Dots being shorter and having a reduced section that has less frictional surface area...
Thanks for you post. Could you post pics of the bullets you have?
Per your request. SC
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Amazed they had these, it looks like these were pulled. Those are the new style Gold Dots and HST's
Thanks for posting the pics! Much appreciated! :D
I still have a bunch of the current 200gr Speer Gold dot 10mm's sent to me by Vista Outdoors, the ones Mr Revolverguy tested for us. My hope is to get a chrono soon, otherwise my testing is pretty useless
Thanks
Ken