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Joined: Oct 2011
Posts: 381
Campfire Member
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OP
Campfire Member
Joined: Oct 2011
Posts: 381 |
So I have recently started loading for my 10mm G40 with KKM barrel.
I had loaded some 180 XTPs today with AA#9. My Hornady Manual(#8) said 14.9grs was the maximum with this bullet.
Loaded some at 14.4grs and they were approaching 1400FPS according to my chrono. Pretty hot.
14.6 was over 1400 near 1450
Decided not to go any further and researched.,
Hodgdon and Accurate’s data show 13.5 is the max with this bullet with a 2.150 vs 2.160 OAL
A chrono shot says the 13.5grs load is 1300 from my gun.
Just a heads up.
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Joined: Nov 2008
Posts: 8,114
Campfire Outfitter
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Campfire Outfitter
Joined: Nov 2008
Posts: 8,114 |
Cool, at least Hornady is consistent. Haven’t trusted their data since the early 90’s.
Swifty
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Joined: Mar 2004
Posts: 20,461
Campfire Ranger
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Campfire Ranger
Joined: Mar 2004
Posts: 20,461 |
I just recently started loading for 10 MM again. I had made a note in the Hornady manual that their top load left ugly spent primers. 14.0 left the primer looking OK...
I now have a functioning chronograph and worked up to AA #9 load data max of 13.5 that gave an average of 1250 180 XTP Glock 20 factory barrel. I'm still planning to try some longshot loads and will report back.
Please don't feed the trolls!
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Joined: Feb 2004
Posts: 2,297
Campfire Regular
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Campfire Regular
Joined: Feb 2004
Posts: 2,297 |
So I have recently started loading for my 10mm G40 with KKM barrel.
I had loaded some 180 XTPs today with AA#9. My Hornady Manual(#8) said 14.9grs was the maximum with this bullet.
Loaded some at 14.4grs and they were approaching 1400FPS according to my chrono. Pretty hot.
14.6 was over 1400 near 1450
Decided not to go any further and researched.,
Hodgdon and Accurate’s data show 13.5 is the max with this bullet with a 2.150 vs 2.160 OAL
A chrono shot says the 13.5grs load is 1300 from my gun.
Just a heads up. What cartridge are you loading?
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Joined: Jan 2007
Posts: 10,695
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2007
Posts: 10,695 |
my experience the Hornady data with AA - 9 powder is hot....
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Joined: Oct 2011
Posts: 381
Campfire Member
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OP
Campfire Member
Joined: Oct 2011
Posts: 381 |
Yep it is hot 10mm
Probably safe but I just decided to back it down.
I figured that XTP would probably explode at 1400-1500fps
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Joined: Nov 2021
Posts: 124
Campfire Member
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Campfire Member
Joined: Nov 2021
Posts: 124 |
FYI-
Accurate Arms (TN) #9 powder is a ball powder.
Accurate (MT) #9 powder is a double base spherical powder.
IF/When your selection was bottled by Hodgdon, it's anybodies guess what's in the container.
Speer Gold Dots will handle more pressure & shoot more accurately than a Hornady XTP.
Last edited by DANS40XC; 11/19/23.
Keep 'em in the X Ring,
DAN
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