Hunting Shack Inc. HSM 200gr Lead “BEAR LOAD” RNFP (provided by MT10mm 9/9/20)

[The_Shadow]

Cartridge is from Ammo Manufacture: Hunting Shack Inc. HSM 200gr Lead  "BEAR LOAD" RNFP  (provided by MT 10mm 9/9/2016)
Ballistics Information: 10mm Auto
Muzzle Velocity: 1200 fps (est)
Muzzle Energy: 639 ft. lbs (est)
Brass Make/Headstamp: Star Line  – Brass
Bullet Make/Weight/Construction/Info; Length 0.6905"/Dia. 0.4005": N/A 200gr RNFP
MEPLAT 0.2350"  (exposed lead beveled base)( Dia. above crimp 0.4015")
Actual weigh 200.8 grains  Crimp Diameter 0.3995"
C.O.A.L.: 1.2475" / 1.2495" / 1.2500"  / 1.2500" / 1.2505"
Primer: Large Pistol Nickel color
Case: Diameter 0.4215" Crimp Diameter 0.4210" (medium crimp)Length 0.9870"
* Powder Description/Positive ID/Type/Charge Weight: Hodgdon LongShot  8.0 grains
**Powder Description/Positive ID/Type/Charge Weight: Ramshot Silhouette 7.2 grains

* Length 0.6905" / Actual weigh 200.8 grains 
**Length 0.6885" / Actual weigh 200.8 grains 

LongShot Load








Silhouette Load

[The_Shadow]

This was interesting to say the least.  MT10mm sent these for documentations and low and behold the first two of the five cartridges I pulled show two different powders and loads.   I'll pull the other three a little later and post the findings.

The other three were as follows;
   Length 0.6905" / Actual weight 200.8 grains  Ramshot Silhouette 7.2 grains
   Length 0.6905" / Actual weight 201.0 grains  Ramshot Silhouette 7.2 grains
   Length 0.6885" / Actual weight 200.0 grains  Ramshot Silhouette 7.2 grains

[mt10mm]

Any ideas of why the different loads?

[Chris P Bacon]

Thank You MT for sending these in! Thank You Shadow for all your efforts! The pictures are great too, adds substance. Overall this is a fantastic resource of information. I recognize the time involved and appreciate it. I trust it's a labor of love.

I see Selway finally corrected their Ad as well (no longer does it state GAS CHECK).
Even though the link (itself) still does.

http://www.selwayarmory.com/hsm-10mm-200-gr-lead-rnfp-gas-check-bear-load-box-of-50.html

Oh and as for the powder change, I wonder if it was simply because they ran out of one or the other?
Still, if they have advanced tracking in place, and are sold in LOTS, it would be nice to have one box of loaded ammo with only one type of powder in each box for better consistency.

[The_Shadow]

I is hard to say what or why the cartridges had different powders and loads.  Powders are much better with regards to supplies being available these days.  I was surprised by the difference...
The Silhouette 7.2 grain loads will probably be around 1100 fps as my best guestimate.
The LongShot maybe closer to 1200 fps...

[mt10mm]

Wonder what bullet they are using, any ideas on that?

[The_Shadow]

It looks to be the Saeco 047 200 TCBB mold 200 gr

[Roguer]

Is that plain lead or hardcast lead?

[The_Shadow]

Cast alloy, not sure of the hardness value, can not scratch it with a hard fingernail so it's pretty hard! 

[Chris P Bacon]

Is that plain lead or hardcast lead?

For what its worth, the manufacturer claims 15 Brinell.

You can view a bit more about it here,
http://10mm-firearms.com/factory-10mm-ammo/hsm-200gr-hc/msg59907/#msg59907

[sqlbullet]

It also appears they have crimped hard enough to swage the lead bullet down visibly.  Hard, undersized lead is a recipe for leading.  And the call a TC a RNFP.

I can deal with the different powder/charge weights.  You have to cut over to a new powder from time to time, and someone gets that box.  As long as the load is within spec for the powder, no worries.

But swaging the bullet down while loading, and using hard lead with an bullet that will probably be undersize means a product that probably won't perform well for a range session.

[The_Shadow]

It appears that these were 0.401" as cast and the crimp squeeze bumped up the area right above the crimp to 0.4015" and the sides dis measure 0.4005" so they were swaged slightly smaller...

This would likely be fine in conventional rifled bores but Glock's factory bores will likely see smearing and gas cutting if the base does not obturate under pressure.

[mt10mm]

I just need to get back into reloading.

[sqlbullet]

Yes, you do.  come one, what are you waiting for?

[mt10mm]

Yes, you do.  come one, what are you waiting for?

My reloading room is now my son's bedroom, I need a bigger house.