Per your request.  SC

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I bought these bullets in September from Tom (Bang For Your Buck) on Gun Broker.

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

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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I would try CFE Pistol.  It worked for me getting a 0.725 bullet up to 1,190 fps.  I didn't like how the brass looked after shooting it out of the stock barrel in my G20SF, so I installed a StormLake barrel in mine.  The new *-* brass almost gauges even after being shot with loads approaching maximum pressures.  Be careful shooting max loads out of the stock barrel.

https://10mm-firearms.com/reloading-10mm-ammo/cutting-edge-190-grain-copper-solid/msg85295/#msg85295

Thanks.  I'm looking forward to what you find during your pulldown.

I've been lurking through this site since I got my G20SF for pulldown information, etc. and it's been very helpful.  Because of the information, I was able to determine that Longshot was the best powder for reloading my 220 grain Ibejiheads in 10mm.

I have a StormLake 5.3" ported barrel installed in my G20SF.  When I examined the brass that was shot in the stock barrel, I determined that I didn't want to experiment with fast loads with the stock barrel.  My friend has a StormLake 4.6" barrel installed in his G20SF and I gain ~20 fps over his barrel, due to the extra length before the first port releases the gas.

We started experimenting with Longshot behind the 190 grain Cutting Edge bullet, but the speed maxed out at 1,082 fps once the amount of Longshot passed 7.7 grains.  8.0 grains and 8.5 grains of Longshot did nothing to add speed to the bullet, the bang was just louder.

Reading this thread, it seemed that we should try a powder with a speed between Longshot and 800-X to drive these Cutting Edge 190 grain bullets.  We had some CFE Pistol around, so we ran a ladder of 6.5, 7.0, 7.5 and 8.0 grains using Winchester LPP and new *-* brass.  All of the primers and brass looked the same, so we don't think we've hit the limit yet. 

The average speed we got through the 5.3" ported barrel with 8.0 grains of CFE Pistol was 1,190 fps.

We're going to try 8.2 and 8.4 grains of CFE Pistol the next time we have a chance to see if we can get the speed over 1,200 fps without flattening the primers.  I'll report back when we get a chance to test again.

Shelton

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