I am looking to get between 1,200-1,300 fps with these Gold Dots. Looking in the Hodgdon reloading data, there is one charge for 800 X, which I believe was 8.7gr. I have chrono'd the Underwood 180gr GDHP load- 5 shot avg Sig P220 was 1297 fps, 5 shot avg Glock 20 6" LW was 1336 fps. The factory ammo pulldown on this site for the 180gr GDHP Underwood load showed 9.6gr of 800 X.

Has anybody duplicated this load with any success? Since Hodgdon shows only one load for 800 X (8.7gr), I would start there and work up to 9.6gr in .2gr increments. The Underwood load is stout, but I did not see any signs of high pressure other than slight case bulging with the stock factory Glock barrel. This was no longer an issue after purchasing the LW barrel.

My component choices are as follows- new Starline brass, Federal GM150M or WLP primers, Longshot or 800 X, and 180gr GDHP bullets.

I recently purchased 600 Speer 180 gr Gold Dot bullets to load for my Sig P220 10mm (5" barrel) and my Glock 20 SF (6" LW barrel), and I'm wondering if Longshot or 800 X would be the better powder to use.

I have a pound of each, and have not used either powder before when loading 10mm. I have several pounds of Ramshot Silhouette and Alliant Power Pistol. These have worked well for 135gr and 155gr bullets.

I am looking to use either Hodgdon Longshot or IMR 800 X for my recently acquired 180gr GDHP bullets because the results look promising in all of the reading I've done. It seems that Longshot can plateau velocity wise, and 800 X can have some varying pressure curves/spikes. Is this correct?

I wanted to get opinions from those that have used either or both. Thanks!

I bought five bags of this brass a few months back. I've shot 100 rounds loaded with TNQ brass, and it's performed just fine.

Thank you all for the replies. Looking through all of my reloading manuals, there are loads listed for 180 gr 10mm with all four powders that I have on hand. I am going to load some of each and see how they perform over a chrono. Of course, where I live, this won't be until spring!

Hello all,

I recently purchased 500 Federal HST 180 gr bullets that I intend to load in 10mm. I did a search here, and saw a couple of loads posted that people had tried.

For components, I have the following- Starline brass, primers- WLP, Federal Gold Match LP, and CCI 350, powder- Longshot, Silhouette, 800X, and Power Pistol. Silhouette and Power Pistol are more than likely a no-go for 180gr anyways.

I saw that others stated that the HST bullet is a little longer than other 180 gr bullets as well. OAL was 1.255"-1.260".

Can I use the data in my reloading manuals for 180 gr 10mm and just work up from minimum? Are there any special precautions I should be aware of due to the HST being longer? 

Awhile back, I purchased 1000 135gr Nosler jhp bullets for $110. I like this weight for SD/HD use in 10mm, and heavier stuff for carry in the woods.

I used Western Powders reloading guide for this load, using Ramshot Silhouette powder.

I started at 10gr (min is 9.9gr), and worked up to max of 11gr in .2gr increments. I did not have a chronograph at the time, but saw no signs of pressure at all.

I loaded these to the following- 11gr Ramshot Silhouette, 1.260" COL, primer- WLP, new Jagemann 10mm brass.

Chronograph data- 81*F
Sig P220 Elite stainless 10mm 5" barrel

135gr Nosler jhp
1-1463 fps 2-1483 fps 3-1489 fps 4-1483 fps 5-1484 fps. Five shot average velocity was 1480 fps. High-1489 fps, Low-1463 fps. ES-26, SD-10

Glock 20 SF w/ LW 6" barrel

135gr Nosler jhp
1-1543 fps 2-1523 fps 3-1539 fps 4-1530 fps 5-1537 fps. Five shot average velocity was 1534 fps. High-1543 fps, Low-1523 fps. ES-20, SD-7

Hello all. I am a new member to the forum, but have done a lot of reading here for some time.

I have seen a couple of people asking about the brass used for the new Sig Elite Performance ammo; specifically who produces it. I believe that I may have figured that out.

I have shot several boxes of the Sig 180gr fmj ammo. It is decently priced, and loaded to full power more or less. When I got my first box, I gave the ammo a good once over. I looked at the headstamps on the brass and immediately noticed a signature characteristic of the Sig brass. The 0 in the 10mm stamp, as well at the O in AUTO, have very little or no relief in the center. What I mean is that there is no pronounced raised portion in the center of either the 0 or the O.

Yesterday, I was at my local Cabela's and found TNQ (Team Never Quit) 10mm brass on sale. It is made by Jagemann. Jagemann makes really good quality brass, so I picked up 3 bags of it to try out. I opened the bag tonight to look at a few pieces of the TNQ brass, and noticed the same exact headstamp characteristics of the Sig brass were present on this new TNQ brass. No raised center portion in the 0 or O stamps.

Also, if you look at "10mm AUTO" on both, they look identical. The A has a shallow relief, and the mm looks the same on both in the 10mm stamping as well. Last, look at the U in AUTO. The bottom portion of the letter is thicker at the bottom of both.

This leads me to believe that Jagemann is supplying the brass for Sig's Elite Performance ammo. I attached a few pics here with arrows to point out the stampings to look at. What do you guys think? Take a look at the pics and let me know.