40 S&W Buffalo Bore 180gr JHP+P 23B

[RDub01]

Cartridge is from Ammo Manufacture:  Buffalo Bore 23B
Muzzle Velocity; Advertised: 1100 fps
Actual Instrumental Velocity:   1083 fps  41°F
Muzzle Energy; Advertised:  484 ft. lbs.







Brass Make/Head Stamp: StarLine 40 S&W
Bullet Make/Weight/construction/Info: Hornady? 180gr Jacketed Hollow Point  .4000" dia; .620" long







Actual Weight:  179.7 grs.
Crimp diameter: .4208"
C.O.A.L.:  1.128"
Primer: brass color
Case: Brass
Powder Description/Positive ID/Type/Charge Weight: Flattened Ball; 6.4grs.







I can get as much as 1150 fps from 8.0grs. Longshot with 180gr bullets in 40 S&W, and I got 1083 fps with 6.4grs WSF.

The primer on the outside looks like a Winchester primer, but the inside charge is basically the same color as the anvil.  Winchester primer charge is either green or red depending if it is a WSPM or WSP.  This primer did not look like either one.

[The_Shadow]

This appears to be CFE Pistol powder and seems to fit the velocity profile as well.
180 GR. BERB FP Hodgdon   CFE Pistol 6.5 grains @ 1,092 fps 32,600 PSI

180 GR. HDY XTP Hodgdon   CFE Pistol 6.0 grains @ 1,051 fps  32,200 PSI

[Taterhead]

The powder looks VERY similar to the powder from the S&W Outdoorsman HC-FN 200 gr std pressure that I pulled down recently. 5.5 gr rated at 1000 fps, although I haven't collected chrony data.

It matched none of the handgun/shotshell powder that I had onhand (I don't have CFE Pistol).

[The_Shadow]

Taterhead, that powder looks like Longshot and that Longshot may actually be what is in RDub's BB loading as well.  Have seen DT use Longshot in his 40S&W load as well.

[Taterhead]

Shadow, That was my first thought (geat minds think alike!), so I compared it to LS (side-by-side). They were definitely different. LS granules were noticeably larger, more irregular, and the color was a different shade. So it was easy to rule out LS.

Of the flattened spherical powders, I also looked at WSF, Silhouette, 231, No. 5, and I'm probably forgetting one or two. No matches.

[The_Shadow]

HS6 could be similar but 5.5 grains is only 810 fps @ 27,000 psi with the 200 XTP and 6.3 makes 900 fps @ 32,800 psi