223/ Vihtavouri N135 69gr +???

[4844]

I have a Browning 223 Varmint Target with a 26'' bbl 1-8 twist, I have been struggling to get it to shoot well, then tried IMR 8208XBR, it will shoot 1/4'' groups regularly with 69 smk. I am running out of that powder and picked up some Vihtavouri N135 powder, have not worked up any loads yet, but will next month when more time permits. Also any info on 69 gr up to 77 gr information Any suggestions, tips or information will be helpful, the advice and suggestions I've gotten in the past has always been helpful.

Thanks Jim

 

[Chickentoast]

Should be ok although I've only worked up N140 and N540 for heavies.

 

[jagged77]

Vihtavuori lists load data for N135 / 69gn SMK and heavier as per link below. That said I’ve only used N140 as it works really well, if you can get hold of some well worth a try. Good luck.

Rifle reloading data | Handloading | Rifle calibers | Centerfire Rifle bullets | Reload your own ammo - Vihtavuori

Vihtavuori offers rifle reloading data for numerous calibers and bullets for match and hunting purposes. Never exceed maximum loads.

www.vihtavuori.com

 

[Doom]

I use N135 with 52gr Berger’s in 223 and 168’s in 308 so you should be OK. It holds less than .4 MOA 5 shot groups in 223. Less than .4 MOA in 308 load development for 3 shots.

Only issue in 223 is case capacity. 25.5 gr fills to the neck.

 

[Molon]

V V N135 works quite well with 69 grain MatchKings. The 10-shot group pictured below was fired from a semi-automatic AR-15. The group has an extreme spread of 0.527 MOA.

 

[4844]

V V N135 works quite well with 69 grain MatchKings. The 10-shot group pictured below was fired from a semi-automatic AR-15. The group has an extreme spread of 0.527 MOA.

 

[4844]

My bbl is a 20'' Wilson hvy contour, .875 gas block 1-8 twist Wylde chamber. I'll be using this rifle also. What was your start and finish load for your AR. I always work up, your info will help. Thanks.

 

[MarkyMark007]

rule of thumb for 223 bullets: ~50gr N133 (N130); ~68-73 gr N135; ~80gr ~N140; ~90+gr maybe N150

N135 should be perfect for you; just not king of the speed...

 

[4844]

V V N135 works quite well with 69 grain MatchKings. The 10-shot group pictured below was fired from a semi-automatic AR-15. The group has an extreme spread of 0.527 MOA.

How many grains of N135 did you use for the 69smk.

 

[SporterII]

H4895 is all I can tell you about if that’s handy.

 

[Molon]

My bbl is a 20'' Wilson hvy contour, .875 gas block 1-8 twist Wylde chamber. I'll be using this rifle also. What was your start and finish load for your AR. I always work up, your info will help. Thanks.

Start at 21.6 grains and work up. Accuracy nodes in my barrels tend to run in the area of 23.2 to 23.4 grains.

 

[4844]

Start at 21.6 grains and work up. Accuracy nodes in my barrels tend to run in the area of 23.2 to 23.4 grains.

Thank you, I'll go with that.