55 Grain Sierra Gameking

Post by **9.3x64** » Fri Dec 17, 2021 1:27 am

(Cartridge) .223 Remington

(Brand of bullet) Sierra

(Weight of bullet) 55 grains

(Brand of brass) ADI

(Type of powder) ADI BM1

(Grains of powder) 25

(Brand, and type of primer) Federal

(COL) 2.20”

(CBTO)

(FPS/MPS) 3291 FPS

(Rifle) R8

(Barrel Length) 58cm

(Scope) Zeiss Classic 6x42

(Weather conditions & temp) Humid 26C

(Accuracy @ 100 yards/meters) Sub one inch
(Notes)
Nice consistent load. No fliers, and no vertical stringing. Would consider this a maximum load, but no signs of pressure in my rifle.

Post by **secondtry** » Fri Dec 17, 2021 3:37 pm

That's boogying

Post by **9.3x64** » Fri Dec 17, 2021 3:52 pm

secondtry wrote: ↑Fri Dec 17, 2021 3:37 pm That's boogying

Yes , it’s getting along. It fills the case nicely and velocity was pretty consistent. ES was about 17 FPS for nine shots.

Post by **SPEEDY** » Fri Dec 17, 2021 4:57 pm

That's the best weight for a 223 a d it's a good versatile bullet, I've killed everything from bunnies to fallow bucks with that pill.

Post by **9.3x64** » Fri Dec 17, 2021 5:06 pm

SPEEDY wrote: ↑Fri Dec 17, 2021 4:57 pm That's the best weight for a 223 a d it's a good versatile bullet, I've killed everything from bunnies to fallow bucks with that pill.

Yes and it’s bloody cheap. $166 per 1000!

Post by **mchughcb** » Sat Dec 18, 2021 4:00 am

Darn good price.

Post by **9.3x64** » Sat Dec 18, 2021 4:09 am

mchughcb wrote: ↑Sat Dec 18, 2021 4:00 am Darn good price.

Yes, it’s that cheap it makes you find a load that “will” shoot with those projectiles...

Post by **SPEEDY** » Sat Dec 18, 2021 5:52 am

At that price I wish the hornet could shoot them.

When they loaded those in the 5 round Winchester white box's there was no need to reload.

Post by **secondtry** » Sat Dec 18, 2021 4:21 pm

9.3x64 wrote: ↑Fri Dec 17, 2021 5:06 pm
SPEEDY wrote: ↑Fri Dec 17, 2021 4:57 pm That's the best weight for a 223 a d it's a good versatile bullet, I've killed everything from bunnies to fallow bucks with that pill.
Yes and it’s bloody cheap. $166 per 1000!

Treasure that memory

Post by **9.3x64** » Sat Dec 18, 2021 5:27 pm

The more I play with Sierra bullets in various calibers, the more I like them.
They are not overly priced and they usually shoot well.

Post by **9.3x64** » Thu Jul 14, 2022 9:09 pm

After further testing I have settled on 24.2 grains of BM1.
Velocity is averaging 3175fps, but groups have tightened up to around 1/2 inch or a little less.

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55 Grain Sierra Gameking

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