Sherman Mega Brass

Caution: firing full pressure loads on this virgin brass may shorten primer pocket life prematurely 

With the mid length action market on the rise, I decided to design a case which is destined to become top dog and called it the MEGA! Think of it as a long WSM that has been “Shermanized” with the efficient, low body taper, 40 degree shoulder, long neck design that leads the industry. Offerings will be available in 7mm, 300, and 338 bore sizes.

PERFORMANCE

This case will rival much larger cases and do it in an under 3.2” COAL (3.3” Free Bore option for longer actions).

Approximate maximum performance will be as follows:

7mm @ 3200’/180s and 3100’/195s

300 @ 3075’/215s

338 @ 2950/250s

BRASS

Top quality ADG head stamped brass will be available in 7mm and 300 head stamps. All brass will come with a 300 neck and require fire forming to a 40 degree shoulder from 35. Use 300Mega brass to form 338Mega

DIES

Hornady custom Match bushing die sets will be available as well as a top quality pr- pay option from Bullet Central (Micron)

I expect the 7mm and 300 versions to become top contenders in F class, 1000 yard, and some ELR competitions, as well as very potent hunting options. The 338 version will offer compact bear stopping performance normally only found in long action magnums using much more powder.

Here is one example of why the MEGA should really shine. The 300 WSM has won many 1000 yard competitions, so here is a spec comparison:

300 WSM

case length 2.10”

capacity 81 grains

neck length .298”

*max velocity 3000’

300 MEGA

case length 2.16”

capacity 85 grains

neck length .342”

*max velocity 3075’ (3000’/H1000)

*26” barrel