CCI · Pistol

Blazer® Rimfire [4-10026]

0.128BC (G1)

38.0gr2.46 g

376m/s1235 fps

174J129 ft·lb

Manufacturer	CCI
Calibre	5.66 mm (.223")
Bullet weight	38.0 gr · 2.46 g
Ballistic coefficient G1	0.128
Ballistic coefficient G7	not published
Drag model used	G1
Muzzle velocity	376.4 m/s · 1235 fps
Muzzle energy	174 J · 129 ft·lb
Sectional density	0.109
Form factor	i1 0.854
Category	Pistol
Source	CCI website 2026-07-02 (verified)

Reading these numbers

Only a G1 ballistic coefficient is published for this load, so BallisticApp solves it against the G1 drag table. G1 BC drifts with velocity — the figure below is valid near the muzzle and drops off as the bullet slows.

Muzzle energy of 174 J (129 ft·lb) is computed from the bullet weight and muzzle velocity above, not quoted from the catalogue. Sectional density 0.109 describes weight per unit of frontal area; divided by the ballistic coefficient it gives the form factor, which is how much drag the shape adds over the standard projectile.

Among the 40 loads of this bore diameter in the database, this one's G1 BC of 0.128 is higher than 22 of them.

Similar 5.66 mm (.223") loads

Blazer® Rimfire38 gr · BC 0.128 · 376 m/s Blazer® Rimfire, 22 LR, 38 Grain, Lead Round Nose, 1235 fps38 gr · BC 0.128 · 376 m/s American Eagle Rimfire, 22 LR, 38 Grain, Copper Plated Hollow Point, 1260 fps38 gr · BC 0.131 · 384 m/s Small Game, 22 LR, 38 Grain, Copper Plated Hollow Point, 1260 fps38 gr · BC 0.131 · 384 m/s AR Tactical, 22 LR, 40 Grain, Copper Plated Round Nose, 1200 fps40 gr · BC 0.120 · 366 m/s Blazer® Rimfire40 gr · BC 0.133 · 376 m/s

Turn this into a drop table for your rifle.

These figures are the bullet's starting point. What you actually dial depends on your rifle's zero, the air you're shooting in and the wind on the day — BallisticApp solves that on the phone, offline, using the same G1/G7 tables and this database.

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