I am getting ready to load up some shells for my new 270 (Browning A-bolt). From what I've read, H4831sc appears to be a good powder to start with. Does anybody have any experience with this? I will probably be loading Nosler Ballistic tips in either 130 or 150 grains.
Thanks.

Some of the best there is out there. Start with the 130gr bullets, 57gr of H-4831 and work up to the max in your rifle in 1/2 grain increments. Pick the most accurate load.

Yep , Ive used H4831sc in my 270. R22 also

Ditto GSP7.

I (my rifle) prefers R22.

60 grains of H-4831 with a 130 grain bullet is a "classic" load, but it is far too hot in my .270. Mine tops out at 58.5 grains and generates 3200 fps (24.4" barrel). Just a note of caution that you may need to stop before reaching the "maximum", depending on your particular rifle.

If there's a better powder for the .270 it is yet to be invented. But come to think of it, the Short Cut version IS a better powder due to its metering characteristics, so I guess a better powder has been invented!

H4831SC,is the same powder as H4831 but it ic made in smaller cylinder shapes so it can flow through a powder measure and not get cut or caught up like the larger grained type.I use 58.grs for both,and this a good load,and you don,t have to reset your measure to reload both,if thats what you desire. van

The H4831SC is the same as H4831,but made smaller to flow through the ppowder measure easier. I use 58grs. for both 130,& 150 gr bullet. This way i don,t have to reset my powder measure when loading,and both are very good loads. van

quote:

Some of the best there is out there. Start with the 130gr bullets, 57gr of H-4831 and work up to the max in your rifle in 1/2 grain increments. Pick the most accurate load.

Ditto

My current 270 tops out at 59-60 grains under 130 NBTs. I can get to 58 grns under HDy SPs. Both are devastating on whitetails.

Great powder choice for the 270!

I do get much better velocity with R22 but the accuracy isn't as good as H4831 in that particular rifle.

Good Luck

Reloader

I really like the H4831SC behind 150 grain bullets. I have a pet load somewhere for H4831 and the 150 Nosler Partition.

It's been my experience that H4350 works a little better behind 130 grainers. It produces great groups for me with 130gr TSXs.

That's one of the best powders available for the .270 -- it works well for bullet weights from 130 to 150 grains.

Thanks for all of the input guys! I'm excited to get started. I am loading up mainly for hunting (mule deer and elk). Since I have usually hunted these two during the same season I am kind of leaning toward the 150 grain bullet. I understand that the 130 grain would be plenty, if not perfect, for deer. I'm not sure about the elk, though. I know shot placement is key and nothing can substitute for that. Any input?

I do NOT recommend the Btip in either wt for an elk.

All of the above advice is right on. My brother's first load on his new 270 was H4831SC, 57.0 grains AND 59.0 grains with a 130 Btip.

It is truly hard to argue against the various 4831s in a 270...in fact, I think the 2 are as good a match as any powder caliber combo you'll ever find.

Since you mentioned elk, however, I advise you consider some different bullets, and I'd stick with the 150 class if you plan on using leaded.

Split the difference and get some 140gr Nosler Partitions. 4831 is a classic 270Win powder. The SC version is easier to throw in a measure. 140gr Partition is a great bullet. Kudude

WFG:
Yes, H 4831sc gives very good accuracy. The NBT is an excellent bullet, but if you prefer Noslers, you'd be better off with the AccuBond.
Even better for your intentions is the TSX 130-grainers, very accurate.
For your load development: consider the Audette method, go to: https://forums.accuratereloading.com/eve/forums/a/tpc/f/2511043/m/571104925
Nice day,
Jan.

I've been using my 270, now my son's, for about 30 years with H4831. The H4831SC will allow for easier metering and should allow for more powder in a case. We have taken many large mule deer bucks and bull elk here in Idaho with the Nosler 130g BT. I have seen and used H4831 loads from 58 to 62 grains without high pressure signs depending on the cases used; getting 10-12 reloads per case with Winchester brass. Velocity has been above 3100 fps with a 22 inch barrel and the accuracy has been very acceptable for a Ruger (1" to 2"). There are a lot of people that are using R22 in this round and I would also be giving that powder a peek.

1986 a-bolt hunter in 270win. 140gr ball tip and 140gr accubonds, fed 210primers, H4831SC at 58.0grs. oal at 3.350. both shoot less tan half inch groups and both bullets shoot at same point of impact. You can nosler accubonds factory seconds at nosler site look under shooters pro shop

I used 4831, but found that H-414 or H-450 worked better