Fenix Ammunition 180gr Round Nose Flat Point Brass FMJ supplied by IC Nov 2017

[The_Shadow]

Cartridge is from Ammo Manufacture: Fenix Ammunition 180gr Round Nose Flat Point  Brass FMJ (supplied by Intercooler Nov 2017)
Ballistics Information: 10mm Auto
Muzzle Velocity: 1300 fps
Muzzle Energy: 675 ft. lbs
Brass Make/Headstamp: StarLine  - Brass
Bullet Make/Weight/Construction/Info; Length 0.6020"/Dia. 0.4000": 180gr RNFP FMJ
Actual weigh 181.0 grains  Crimp Line Diameter 0.3970" 
MEPLAT   0.2500"   (concaved exposed lead base)
C.O.A.L.: 1.2395"  / 1.2490" / 1.2505"  / 1.2540" / 1.2540" 
Primer: Large Pistol Brass color (5 struck no ignition)
Case: Diameter 0.4200" Crimp Diameter 0.4195" (medium crimp)Length 0.9880"
Powder Description/Positive ID/Type/Charge Weight: Hodgdon LongShot  9.4/9.6/9.8/9.8/10.0 grains 













The pulled primer shows the priming pellet inside...Placed the pulled primer inside an other old brass and it fired as tested from the S&W1006.
Some primer dust found in second, third, forth & fifth pull-down.  Some of the pellet was still inside of them all.

[tommac919]

that is some spread on the powder weights

[The_Shadow]

Yes and IC's velocities also showed some swings.

This was the shocker of today's shooting. Really stout and probably a little tough on the hands if doing a long session. Almost a tie between these and Buffalo Bore for strongest 180's ever recorded.

EAA Limited Pro 4.75" 1354, 1359, 1334, 1344, 1347. Average 1347.6 FPS/ 726 LBS
EAA Super Match 6" 1388, 1404, 1385. 1398, 1391. Average 1393.2 FPS/ 776 LBS

The 10.0 grain charge is up at SwampFox's loadings. Being these are shorter FMJ bullets it was probably OK, but would be higher pressures with JHP's. 
Hence the WARNINGS for FULLY SUPPORTED CHAMBERS that were on SwampFox ammo boxes...

[Intercooler]

Should I enter 9.8 or 10.0?

[The_Shadow]

The average in this 5 sample group was probably 9.8 with this 9.4/9.6/9.8/9.8/10.0 grains  as measured

[Intercooler]

The 10mm sheet has been updated.

[msjayhawk]

I shot two boxes to date. 100 for 100. Did you talk to Fenix?

-Russ

[Intercooler]

  Me? 

I talked to them.