Question on reloading these 200s with coating from MBC.

[Popapi]

Got these last night from the Montana Bullet Company.  Trying to see have anyone loaded this type of bullet with LongShot and or BE-86. If so would you mind sharing your load data. These will be loaded for my G20 with BarSto barrel.







https://www.montanabulletworks.com/product/10mm-noe-200gr-wfn-gc/

[sqlbullet]

I just use the Hodgdon book data for Longshot.  Even though this is for a jacketed bullet, it should work find for a cast bullet.  You should expect to hit the listed max velocity at a slightly lower charge due to improved bore seal of the cast bullet.

I have not used BE-86 with any 200 grain cast bullets to date.  If I were I would start around 6.5 grains and work up to a max charge of maybe 7.2 grains or a max velocity of 1100 fps.  Watch your case head expansion with a micrometer as you work this load up.  This is very much off book and use at your own risk.

[The_Shadow]

Popapi have a look at the data here:  Then decide what you want to work up yours with...
This is the 220 grain from UW
http://10mm-firearms.com/factory-10mm-ammo-pull-downs/underwood-220gr-hi-tek-coated-hard-cast-fn-(redline-819)/msg85311/#msg85311

Parabellum Research 200 cast with gas check:
http://10mm-firearms.com/factory-10mm-ammo-pull-downs/parabellum-research-pbr-200gr-beartooth-wfn-gas-checked-cast-pull-down/msg37148/#msg37148

UW 220 grain cast:
http://10mm-firearms.com/factory-10mm-ammo-pull-downs/underwood-220gr-cast-wfn-1230-fps-pull-down/msg22946/#msg22946

[Popapi]

Thanks guys I appreciate everything!

[Popapi]

All these did well. Thinking 8.4 or 8.6.

[The_Shadow]

All these did well. Thinking 8.4 or 8.6.

What powder did you test with for those numbers?

[Popapi]

All these did well. Thinking 8.4 or 8.6.

What powder did you test with for those numbers?

Shadow. LongShot.

[Popapi]

@Shadow that UW 220 you listed it shot. 1146, 1165, 1170 and 1172.

[The_Shadow]

Yes UW list the 220 HiTec as 1200 fps and not quite making the advertised, I think he test with a 5" barrel!

[Popapi]

Yes UW list the 220 HiTec as 1200 fps and not quite making the advertised, I think he test with a 5" barrel!

Copy that.