Data for ALL Cals Ackley Imp

Mar 30, 2013
1,252
119
63
Maryland
.243ai
Formed Lapua brass
46.8 grains H4831sc
BR-2
Berger 105 hybrid
26" CBI prefit
I figure it's running around 3300 Fps from my quick dope finding sessions.

Forming load is
Lapua brass
44.1 grains H4831sc
BR-2
105 Hybrid
Pushes along about 3050 fps and shoots into one hole frequently.
 
Last edited:

MCSO1357

Full Member
Jul 9, 2008
1,171
11
38
Iowa
223 AI

Cooper Arms M21, 24" barrel w/ 1-14 twist

With fire formed Winchester brass, 50 gr Nosler Ballistic Tip on top of 28.0 gr Benchmark, Rem 7 1/2 primers, flies at 3650 fps.
THIS LOAD SHOOTS LITERAL 1 HOLE GROUPS OUT OF MY RIFLE AT 100 YARDS. Best group (wallet photo!) measured .051" 5-shots. I shoot it sitting at a bench, mostly for prairie dogs (absolutely destroys them).

Same brass and primers, 40 gr. Nosler Ballistic Tip on top of 28.2 gr H335, flies around 4000 fps (haven't chronographed this load yet). Shoots almost as good as 50 grainers.
 

MLC

Gunny Sergeant
May 4, 2004
1,074
0
36
Solebury, PA
Just for giggles, I am punching out my .223 SPS Tactical with the 20" 1/9tw bl. I have a bunch of 62gn Nosler Varmegeddons and about 10,000 pcs of WW brass to play with for a fun little yote and cat round. Anyone have any info with 55 & 60/62gn pills? Thx in advance.
I doubt you'll be let down by H-335 or 8208 XBR with those.
 

Fursniper

Captain, USMM (retired)
Feb 13, 2017
2,209
34
48
Arizona
.338 Lapua Improved
94.5 Retumbo
300 gr SMK
Lapua brass
2844 fps (32" krieger)
Federal match magnum 215's
SD of 7

Easy shooting load, .25-.30 groups. Fun load to shoot out to 2000.
 

Fursniper

Captain, USMM (retired)
Feb 13, 2017
2,209
34
48
Arizona
Ok, here's a new one I really like; .338AI, 256 gr Flatline, 102 grs Retumbo @ 3200 fps (7000' DA & 32" Krieger w/ 1 in 9.3). COAL of 4.080 (single feed). Just ran some of these, gets me out to 2500k in short order. A lot can go wrong in 4 seconds though lol......