10mm brass check for pressure signs

[KYregular]

just tested so 10mm loads, I'm fairly new to reloading 10mm and in my opinion these loads look fine. does anyone have any opinions on these or have a similar load to mine?
Springfield xdm elite 10mm 4.5" barrel
hornady 180 xtp
9.0 grains power pistol
1.260 oal
velocity 1252 fps
ES 19
SD 7
roughly 80 degrees outside
grouped well

 

[Soonerpesek]

They must be good…..
All those spent primers are smiling….

 

[KYregular]

They must be good…..
All those spent primers are smiling….

better than that glock smile on the side of some cases lol

 

[Lennyjoe]

Those aren’t bad.

Speaking of Glocksmiles, here’s a signs of unsupported Chamber. They shoot fine in my G40, XDM Elite, S&W M&P 2.0 but not in my FN 510.

 

[243winxb]

hornady 180 xtp

Have you looked at Hornady load data, with Power Pistol? There is some primer flow into the firing pin hole, but may just be the gun. Hard to read primers.

 

[KYregular]

Have you looked at Hornady load data, with Power Pistol? There is some primer flow into the firing pin hole, but may just be the gun. Hard to read primers.

Actually used Alliants data whichbis 9.3 max. I loaded them at 1.260 and a lot of loads are at 1.250. I'm happy at that load and velocity with a single digit SD that groups well.

 

[41 Mag]

I have loaded for a 10 for a couple of decades and other than the aforementioned firing pin flow those look fine.

Both of my 10's have fully supported chambers. The G40 barrel was switched out to a KKM the day I got it. I'm shooting the 180gr Gold Dot over AA-9 along with a couple of cast HP'S in both. I've shot the same load since back in the late 80's and taken a lot of game with them.

If you're getting good accuracy with that load I'd say load a bunch and go have fun.

 

[Y-T71]

Aside from the little bit of protrusion (probably more an indication of some "slop" in the firing pin hole) they look OK to me; still a nice radius on the edges of the primers.

Curious as to what brand of primer.

 

[murf]

no primer swipe from the breach face; a primer flow ring around the firing pin strike dent; still a decent moat (for lack of a better term) around the primer; 19 fps extreme spread. nice load!

I wouldn't go any higher with that powder charge, though,

murf

 

[SingleActionAndrew]

Those aren’t bad.

Speaking of Glocksmiles, here’s a signs of unsupported Chamber. They shoot fine in my G40, XDM Elite, S&W M&P 2.0 but not in my FN 510.

Your FN510 creates the "smiles," or are you reloading the brass with still smiles on and the 510 won't chamber? Thanks

 

[Lennyjoe]

Your FN510 creates the "smiles," or are you reloading the brass with still smiles on and the 510 won't chamber? Thanks

The 510 is creating the smiles due to its lack of chamber support like the old Glock .40 cals did back in the day. Not sure if there’s an aftermarket option out there for the 510 like Glocks have. In the meantime, the 501 won’t get the 800X loads that the rest can shoot.

 

[NMexJim]

According to Alliant for 180 FMJ, Power Pistol is 9.3 at 1296 so you’re up there but have some room especially with an XDM.

My 10th edition Hornady shows for the XTP a load of 8.4 Power Pistol to be max at 1150. That’s a little concerning.

There are some signs of firing pin drag which wouldn’t concern me except you’re running some hot. I wouldn’t worry about that except it would appear that there was some metal flow around the firing pin.

Slide might be trying to unlock too soon.

But, I don‘t see any smears or flattening of the stamping on the head face.

Like ,243 says, primers are not the best indication of pressure.

Mic the case head. It shouldn’t be too much over .4250.
Punch out the primers and see what they look like. Give us a picture.

I think you’re ok. Hornady can be conservative, but that’s a good size delta. T’was me, I’d go with Hornady.

 

[KYregular]

According to Alliant for 180 FMJ, Power Pistol is 9.3 at 1296 so you’re up there but have some room especially with an XDM.

My 10th edition Hornady shows for the XTP a load of 8.4 Power Pistol to be max at 1150. That’s a little concerning.

There are some signs of firing pin drag which wouldn’t concern me except you’re running some hot. I wouldn’t worry about that except it would appear that there was some metal flow around the firing pin.

Slide might be trying to unlock too soon.

But, I don‘t see any smears or flattening of the stamping on the head face.

Like ,243 says, primers are not the best indication of pressure.

Mic the case head. It shouldn’t be too much over .4250.
Punch out the primers and see what they look like. Give us a picture.

I think you’re ok. Hornady can be conservative, but that’s a good size delta. T’was me, I’d go with Hornady.

Case heads, even in my lighter ladder loads are all coming in at around .428

 

[NMexJim]

The XDM has a match barrel, right? SAAMI chamber drawings shiow 4281 +.004. No bulges (?) which would surprise me in this barrel. That looks ok.

I used to use a lot of weight for weight bullet data not worrying a whit about transposition. I’m a bit more conservative now.

I have an XDM in 9mm that’s seen a lot of +P+. No firing pin drag. No issues at all. Strong pistols.

Here’s spring kits from Wolff including extra power that you might be interested in.

https://www.gunsprings.com/SPRINGFIELD/XD(M)+4.5+&+5.25+INCH/cID1/mID60/dID418

Does it feel ”hot” when you shoot?

Punch primers yet? I wanna see.

 

[243winxb]

My 10th edition Hornady shows for the XTP a load of 8.4 Power Pistol to be max at 1150. That’s a little concerning.

Have you looked at Hornady load data, with Power Pistol?

Thats the online data i saw. How long the brass lasts may give a clue if the pressure is ok.


https://www.buffalobore.com/index.php?l=product_detail&p=114 180 gr. Jacketed Hollow Point - 1,350 fps
SAAMI velocities out of a test barrel are in a +/- 90fps range. Keeping in mind, fps is not an exact indication of pressure. The bullets construction & bearing surface have an effect on pressures.

SAAMI 10MM velocity-

 

[KYregular]

The XDM has a match barrel, right? SAAMI chamber drawings shiow 4281 +.004. No bulges (?) which would surprise me in this barrel. That looks ok.

I used to use a lot of weight for weight bullet data not worrying a whit about transposition. I’m a bit more conservative now.

I have an XDM in 9mm that’s seen a lot of +P+. No firing pin drag. No issues at all. Strong pistols.

Here’s spring kits from Wolff including extra power that you might be interested in.

https://www.gunsprings.com/SPRINGFIELD/XD(M)+4.5+&+5.25+INCH/cID1/mID60/dID418

Does it feel ”hot” when you shoot?

Punch primers yet? I wanna see.

check out the pics of primers above your post. Yes the xdm is a match barrel. appreciate your input

 

[KYregular]

Thats the online data i saw. How long the brass lasts may give a clue if the pressure is ok.


https://www.buffalobore.com/index.php?l=product_detail&p=114 180 gr. Jacketed Hollow Point - 1,350 fps
SAAMI velocities out of a test barrel are in a +/- 90fps range. Keeping in mind, fps is not an exact indication of pressure. The bullets construction & bearing surface have an effect on pressures.

SAAMI 10MM velocity-View attachment 1169830

as far as brass lasting that shouldn't be an issue, these loads are my "woods carry" loads not plinker or play rounds. thanks

 

[NMexJim]

So, I think you're ok with that load especially if you like it. Firing pin drag is common in short-barreled pistols because of the limited space for recoil to take place. You don't have a short-barreled pistol and I'm a little surprised to see any. Spent primers look pretty good.

When I run a lot of hot loads, I change springs and add slide buffers to protect the slide and rails. I've used them for years in Hi-Powers and 1911s. Some don't like them for defensive use. The story is that they can move out of place and jam a pistol. I have not had that happen myself. Anyway, that's what I do. Wolff Springs shown above (used for 40-years) and these guys, but I have not used them before. Do research before you decide on a manufacturer. I'm not sure what "new model" means.

Frame Shock Buffer for SPRINGFIELD™ XD New Models (DISCONTINUED)

The SI Frame Shock Buffer for the Springfield XD is a polyester based thermoplastic polyurethane barrier that is uniquely designed to absorb recoil. The FSB-XD was designed to increase durability between the areas of the metal slide and polymer frame while also decrease the amount of overall...

www.strikeindustries.com

If you're not shooting these loads on a steady basis, you're probably good.

I own 3 Springfields - an XDM, an XD subcompact, and an EMP. I think the Croats make a fine gun that is tougher than nails. Bug out quality.

 

[KYregular]

So, I think you're ok with that load especially if you like it. Firing pin drag is common in short-barreled pistols because of the limited space for recoil to take place. You don't have a short-barreled pistol and I'm a little surprised to see any. Spent primers look pretty good.

When I run a lot of hot loads, I change springs and add slide buffers to protect the slide and rails. I've used them for years in Hi-Powers and 1911s. Some don't like them for defensive use. The story is that they can move out of place and jam a pistol. I have not had that happen myself. Anyway, that's what I do. Wolff Springs shown above (used for 40-years) and these guys, but I have not used them before. Do research before you decide on a manufacturer. I'm not sure what "new model" means.

Frame Shock Buffer for SPRINGFIELD™ XD New Models (DISCONTINUED)

The SI Frame Shock Buffer for the Springfield XD is a polyester based thermoplastic polyurethane barrier that is uniquely designed to absorb recoil. The FSB-XD was designed to increase durability between the areas of the metal slide and polymer frame while also decrease the amount of overall...

www.strikeindustries.com

If you're not shooting these loads on a steady basis, you're probably good.

I own 3 Springfields - an XDM, an XD subcompact, and an EMP. I think the Croats make a fine gun that is tougher than nails. Bug out quality.

thanks for all, definitely not shooting on a steady basis, just a few rounds for the woods.

 

[JHTexas]

Here is one other load reference from Lyman you can use:
lyman 49th
Power Pistol
5” Barrel
Sierra 180gr JHP
CCI-300 primer
1.250” OAL
7.2gr~8.0gr
1107~1209fps

My range load is:
Power Pistol
5” Barrel
Hornady XTP 180gr
CCI-300 primer
Starline Brass
1.260 OAL
7.9gr
1185fps

 

[Y-T71]

My bulk blasting load is 180gr Berrys TC plated under 8.0 gr Power Pistol.

When the Berrys are all used up I won't be buying any more.

Accuracy is only barely acceptable out of a S&W 1006.

Haven't been able to launch any from my 610 but, out of these 2 platforms, I'm not even close to exploring the potential of the 10mm Auto and I can cast and coat for far less money.

Still curious as to what brand primer you're using OP.

 

[KYregular]

My bulk blasting load is 180gr Berrys TC plated under 8.0 gr Power Pistol.

When the Berrys are all used up I won't be buying any more.

Accuracy is only barely acceptable out of a S&W 1006.

Haven't been able to launch any from my 610 but, out of these 2 platforms, I'm not even close to exploring the potential of the 10mm Auto and I can cast and coat for far less money.

Still curious as to what brand primer you're using OP.

CCI primers

 

[sparkyv]

I agree, reading pressure from primer marks is futile, especially in 10mm. I regularly get pretty flat ones shooting top end book loads/velocities in every 10mm I've shot.

Hard to read primers.

have loaded for a 10 for a couple of decades and other than the aforementioned firing pin flow those look fine

 

[KYregular]

I agree, reading pressure from primer marks is futile, especially in 10mm. I regularly get pretty flat ones shooting top end book loads/velocities in every 10mm I've shot.

the fired case heads are measuring .428 which is right a chamber width.

 

[KYregular]

Just for reference, here are some factory cases not fired for my gun and probably from several different guns, showing primer drag. Starting to think this just might be a 10mm thing?