.22 Creedmoor, anyone?

[newmexkid]

PAC NOR did my 22 Creedmoor barrel and it shoots 80 gr. Nosler CC and 80.5 gr. Berger Fullbore equally great. However, I went with the Nosler's because of availability. I'm using H-4350 which gives me a 10 shot, (Magneto Sporter) average of 3500 fps out of a 1:8 finished t 28". I've never had luck with Nosler's but, this barrel just loves them.

 

[browning442]

I'm shooting nosler 69 custom competition bullets out of my 223 AI.... they shoot great also. I've had similar experience to you in that I've had trouble shooting noslers in the past. But these were on a super sale so I got 500.

 

[Sflutes]

I'm having loads of fun with this one, working on 75gr Amax for coyotes and see what else jumps out in front of it.

 

[7wsm]

bullet rpm was brought to my attention on another forum.
wow, so as an example: 80gr @ 3400fps in a 1:7 is at 349,000 rpm!

1:7.7 would be at 317,000rpm
1:8 would be at 306,000rpm

that right there makes me think i will go with either a 1:7.7 or 1:8

running the ballistics...... an 80gr eldm is what i will focus on. anything above 3400fps will be a bonus to me.

(i used to have a 6ai with a 1:10twist that i shot 95gr bergers in just fine and that had only a 1.25 stability factor on the berger calculator)

 

[7wsm]

So if I go with a1:8 twist, how long of a barrel is needed to push the 80s to 3400fps? 23" work? Or should I go 24"?

 

[venatic]

23inch should get you to 3400 with the right powder but that's as short as I would try if 3400 is your goal.

 

[browning442]

NOTE: THESE ARE NOT MY OWN RESULTS, I AM SIMPLY POSTING FROM A FACEBOOK GROUP FOR 22 CREEDMOOR, A GENTLEMAN WAS GENEROUS ENOUGH TO POST HIS FINDINGS.

Some load results from a 26" 1:7 Tikka

75gr Hornady Amax @ 2.63" OAL
.114" jump to lands
Alpha Brass
Federal 210M large rifle primer

H4350 41.4grs - 3403 FPS

H4831sc 44.2grs - 3302 FPS

IMR 4451 39.3grs - 3256 FPS

IMR 4955 43.2grs - 3381 FPS
IMR 4955 43.6grs - 3453 FPS

IMR 7977 46.2grs - 3226 FPS

Accurate Magpro 47.2grs - 3282 FPS
Accurate Magpro 47.7grs - 3328 FPS

Ramshot Hunter 42.7grs - 3340 FPS

Ramshot Magnum 48.7grs - 3359 FPS

Reloader 16 41.0grs - 3426 FPS

Reloader 17 41.0grs - 3384 FPS
Reloader 17 41.8grs - 3499 FPS

Reloader 19 43.2grs - 3344 FPS

Reloader 22 45.1grs - 3452 FPS

Reloader 23 43.3grs - 3472 FPS

Reloader 26 45.0grs - 3392 FPS
Reloader 26 45.5grs - 3467 FPS

VihtaVuori N560 45.6grs - 3307 FPS

Winchester 760 41.2grs - 3299 FPS
Winchester 760 41.4grs - 3293 FPS

 

[284saum]

that was me who posted the 22cm load results, I've since shot a few more to add :

• RL16 41.4grs ~ 3490 fps, 1.1moa 3 shots 199 yards
• RL17 41.8grs ~ 3499 fps, 0.5moa 2 shots 199 yards
• RL26 46.0grs ~ 3550 fps, 0.8moa 3 shots 199 yards
• IMR 4451 40.1grs ~ 3386 fps, 1.3moa 3 shots 199 yards
• Ramshot Magnum 49.2grs ~ 3448 fps, 1.3moa 3 shots 199 yards
• Win760 40.9grs ~ 3293 fps, 0.9moa 3 shot 199 yards

 

[284saum]

All in one post :

Some load results from a 26" 1:7 Tikka

75gr Hornady Amax @ 2.63" OAL
.114" jump to lands
Alpha Brass
Federal 210M large rifle primer

H4350 41.4grs - 3403 FPS

H4831sc 44.2grs - 3302 FPS

IMR 4451 39.3grs - 3256 FPS
IMR 4451 40.1grs - 3386 FPS

IMR 4955 43.2grs - 3381 FPS
IMR 4955 43.6grs - 3453 FPS

IMR 7977 46.2grs - 3226 FPS

Accurate Magpro 47.2grs - 3282 FPS
Accurate Magpro 47.7grs - 3328 FPS

Ramshot Hunter 42.7grs - 3340 FPS

Ramshot Magnum 48.7grs - 3359 FPS
Ramshot Magnum 49.2grs - 3448 FPS

Reloader 16 41.0grs - 3426 FPS
Reloader 16 41.4grs - 3490 fps

Reloader 17 41.0grs - 3384 FPS
Reloader 17 41.8grs - 3499 FPS

Reloader 19 43.2grs - 3344 FPS

Reloader 22 45.1grs - 3452 FPS

Reloader 23 43.3grs - 3472 FPS

Reloader 26 45.0grs - 3392 FPS
Reloader 26 45.5grs - 3467 FPS
Reloader 26 46.0grs - 3550 FPS

VihtaVuori N560 45.6grs - 3307 FPS

Winchester 760 41.2grs - 3299 FPS
Winchester 760 41.4grs - 3293 FPS
Winchester 760 40.9grs - 3293 FPS

 

[browning442]

Did you hit pressure on the RL16 at 41.4?

Thanks again for sharing info..... saves us all a lot of time and money

 

[Satterlee Scott]

What where the Extreme spreads?

 

[284saum]

Did you hit pressure on the RL16 at 41.4?

No high pressure signs with any load except an ejector mark on the highest IMR 4955 load

What where the Extreme spreads?

Varied from below 10, to 40-50 fps on 3 shots

All these loads were in virgin brass. Now that the batch is all formed, I will anneal, bump shoulder .002", trim, uniform pockets and flash holes, then get more serious about load development. ES will improve I am sure, and I may try a magnum primer too to compare results

 

[browning442]

I just loaded some up with RL16.... the 75eldx, 77 tmk, 80.5. Berger. I actually used cci 450 for all of them. Previously was using gm205m. Wondering if the magnum primers will have much of an effect.

 

[Satterlee Scott]

No high pressure signs with any load except an ejector mark on the highest IMR 4955 load



Varied from below 10, to 40-50 fps on 3 shots

All these loads were in virgin brass. Now that the batch is all formed, I will anneal, bump shoulder .002", trim, uniform pockets and flash holes, then get more serious about load development. ES will improve I am sure, and I may try a magnum primer too to compare results

I've found the RL powders really like magnum primers