Powder for 22-250 and 308

[czgerry]

Hi all can I get a few recommendations for powder for 22-250 55g bt and 308 130g sst.
I currently use h4895 but it’s unfortunately is coming to an end.
Also load for.260 with rl19.
Thanks in advance
Gerry

 

[2Ll’s]

Hi all can I get a few recommendations for powder for 22-250 55g bt and 308 130g sst.
I currently use h4895 but it’s unfortunately is coming to an end.
Also load for.260 with rl19.
Thanks in advance
Gerry

Reloader 15

 

[25 Sharps]

N135/N140

 

[samdk]

Hi all can I get a few recommendations for powder for 22-250 55g bt and 308 130g sst.
I currently use h4895 but it’s unfortunately is coming to an end.
Also load for.260 with rl19.
Thanks in advance
Gerry

I can’t comment on the 308 load but I use N140 in my 22-250 behind a 55gr Sierra Blitzking.

It’s a great poweder for 22-259, amazingly accurate, over 3700 fps, temp stable and an SD of 7fps. You will need at least 24” of barrel for it to shine though.

Sam

 

[czgerry]

I can’t comment on the 308 load but I use N140 in my 22-250 behind a 55gr Sierra Blitzking.

It’s a great poweder for 22-259, amazingly accurate, over 3700 fps, temp stable and an SD of 7fps. You will need at least 24” of barrel for it to shine though.

Sam

I’m almost sure my barrel is short 20”

 

[samdk]

You should still get 3550 from 20” but may benefit from a slightly faster burn, maybe N135.
I hopefully someone can advise as I haven’t worked up a load for 20”.

 

[cjs66]

N140

cjs

 

[Miki]

I think, due to the short barrel, you may need a faster burning powder than the normal N140 so suggest N135 in agreement with @samdk
For the 55gn bullets I have been using N140 with a 36gr charge.
According to GRT the N140 powder still offers a 100% burn in a 20" barrel but you would need to work up a load yourself.

For 45 and 50gn bullets I use N135 but haven't tried this powder with a 55gn

 

[ChesterP]

N140 will do the 22-250 and 308. Your velocities might be a bit down around 2800fps with the 130SSTs in a 20 inch barrel but that's more than enough to get the job done. N140 will also work well with something like the 120 TTSX in 260 Rem but a slightly slower powder would allow fuller case for more uniform ignition.

 

[dave1372]

N140

 

[czgerry]

Cheers lads

 

[Foxyboy43]

All your questions answered.

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[stoker150]

Big game ramshot

 

[One on top of two]

N140

 

[wytonpjs]

I have used IMR4895 for a long time in my .308 with great success. I recently bought some N135 to load Fox rounds in the .308 but discovering significant unexpected spread in a .270 load, I worked up a ladder for N135 with the 110gr TTSX that’s really impressive. Yet to test it in my 20” .308s but so far, I’m very impressed by N135.

 

[BAS]

I’ve been using lately N540 behind some 165grain Hornady SST and GMX with good results from a 22” barrel.

I started using the N540 due to the shortage of N140.

 

[308tikka]

22-250 Rs52 37gn

N140 is such an excellent powder for 308, but as others state N135 might be better for you. Also dont overlook CFE223.

You need to go on whats available locally, these days. Plenty of load data.

 

[tacklerat]

I'm having some great results with both the 308 and the 22/250 using 8208. If you can get it in Britain, it's great powder. In the 22/250 I have a great load for a 62gn Sierra Game King which WILL stabilise in 1/14 twist. Muzzle velocities are a little over 3,400fps and I'm looking at using the rifle on Fallow Deer.

 

[Miki]

IMR

IMR 8208 XBR

NOT compliant

2,4-dinitrotoluene (carcinogenic)

 

[NP435]

CFE223