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English Mike
June 16, 2007, 19:18
Anyone used these in .270Win/130gr?

I'm looking for load data & it's pretty thin on the ground.

What IS there has max loads from 55.8gr of IMR4831 all the way to 61.5gr:uhoh:

jerrymrc
June 17, 2007, 07:39
my book shows 50.5 starting @ 2773 fps and a max of 56.5 @ 3080 fps

MAINER
June 18, 2007, 12:29
My info indicates 57.0 gr IMR-4831 would give 3,068 fps out of 22" barrel, and potentially best accuracy with this powder. 61 grs. was hot and gave only slightly more velocity and less accuracy.

This is a very good powder-bullet combination in a .270 and I'd start at 55.0 work up in 1.0 gr steps to 58.0 or 59.0 and go with the most accurate load.

Would have preferred at least a 24" barrel in this caliber, but always liked the .280 Rem or 30-06 with their heavier bullets. (Live in Moose an B'ar country, y'see.) ;)

Got lots of Reloading info, let me know if I can help!

btw: Grandmother was from St. Wenn parrish, Bodmin area.

English Mike
June 18, 2007, 18:23
Originally posted by MAINER
My info indicates 57.0 gr IMR-4831 would give 3,068 fps out of 22" barrel, and potentially best accuracy with this powder. 61 grs. was hot and gave only slightly more velocity and less accuracy.

This is a very good powder-bullet combination in a .270 and I'd start at 55.0 work up in 1.0 gr steps to 58.0 or 59.0 and go with the most accurate load.

Would have preferred at least a 24" barrel in this caliber, but always liked the .280 Rem or 30-06 with their heavier bullets. (Live in Moose an B'ar country, y'see.) ;)

Got lots of Reloading info, let me know if I can help!

btw: Grandmother was from St. Wenn parrish, Bodmin area.

Ta much.

4831 seems to be the powder with best potential for accuracy & the 130gr SST's the same.

I'll be working up some loads this weekend if the bullets arrive.

Bodmin is the other end of the country from me - I'm in the NW & Bodmin in the SW: County of Cornwall - a beautiful place & worth a visit if you can.(Not in June-Sept though - full of tourists, the same as here).

ramiller
June 18, 2007, 18:26
Use the 4831SC meters better and seems to burn a little cleaner.

English Mike
June 18, 2007, 18:37
Originally posted by ramiller
Use the 4831SC meters better and seems to burn a little cleaner.

Aye, I was looking at that but right now I can't find a supply within driving distance (If you think your delivery charges are bad for powder, then you should see ours:sad: ).

I can order the stuff locally but it takes 6-8 weeks to arrive....

owlcreekok
June 19, 2007, 00:05
I tried to post to this earlier but the Files was all fracked up then. I have had some good results with 4831 in my pet .270's. I've turned it all to 4895 nowadays to standardise all I can. .270, .308 and '06 all burn 4895 around here. I shoot a Belgium made FN .270 Mauser with 130's, a few 140's, some 150's and even a FEW 170's. All but the 170's post good groups (hunting groups, under 1.5 MOA) with 4895. I hafta go to 4350 to make the FN throw the heavies straight, flat and far. (taking straight in this weight's case with a chunk of salt)

I will need to get a better scope for the old girl, but I have the loads for 130 thru 150 worked up so that I am pretty much dead on with one setting on the optic for all bullets out to 200. The 130's and 140's are still on line at 300 but the 150 drops out around 250-275. Again, using 4895. It took a lot of banging but my old FN tolerates the loads. The heavy 170 is a whole different animal. I dunno what the twist of the old FN's barrel is, but from what I have been getting (or not getting I should say) I would be safe to guess my barrel won't spin the heavies properly.

Fun, ain't it ? More funner when ya only a blind ass old Owl.

:rofl:

GSF1200
July 17, 2007, 22:05
Originally posted by owlcreekok
I tried to post to this earlier but the Files was all fracked up then. I have had some good results with 4831 in my pet .270's. I've turned it all to 4895 nowadays to standardise all I can. .270, .308 and '06 all burn 4895 around here. I shoot a Belgium made FN .270 Mauser with 130's, a few 140's, some 150's and even a FEW 170's. All but the 170's post good groups (hunting groups, under 1.5 MOA) with 4895. I hafta go to 4350 to make the FN throw the heavies straight, flat and far. (taking straight in this weight's case with a chunk of salt)

I will need to get a better scope for the old girl, but I have the loads for 130 thru 150 worked up so that I am pretty much dead on with one setting on the optic for all bullets out to 200. The 130's and 140's are still on line at 300 but the 150 drops out around 250-275. Again, using 4895. It took a lot of banging but my old FN tolerates the loads. The heavy 170 is a whole different animal. I dunno what the twist of the old FN's barrel is, but from what I have been getting (or not getting I should say) I would be safe to guess my barrel won't spin the heavies properly.

Fun, ain't it ? More funner when ya only a blind ass old Owl.

:rofl:

The 270 will shoot the 170's fine but NOT with 4895! You need 4831

SS
July 17, 2007, 22:14
Until a few years ago my primary rifle for South Texas whitetail deer was a Remington 700 Mountain Rifle in .270, that I handloaded for extensively. I never used IMR4831 in it, preferring the slightly slower burning H4831 with 130gr. Nosler Partitions, Ballistic Tips, and Hornady Spire Points. I could get 2960fps from the Noslers, and 2990fps from the Hornady bullet, each with 59.5gr of H4831, from the 22in. barrel. I never could get to 60gr in that rifle without flattening primers, even with the 130gr Hornady Spire Point's very short bearing surface. For reference, my 4th Edition Hornady load book shows a max of 59.6gr H4831 with the 130gr Spire Point, producing 3000fps (probably 24in. bbl). I also tested slightly faster burning RL-19 with those bullets, but found lower velocities and less accuracy with all bullet weights in that rifle.

I did shoot some Hornady Light Magnum factory ammo with the 130gr SST in it for a season, my chronograph showed around 3100fps from that load, depending on temperature. I believe that was the first year the SST was available, and I chose not to handload that year. Hornady uses some sort of compressed, slow-burning powder in their Light Magnums that they aren't releasing details on.

I currently use the Hornady 117gr SST at 3150fps in a Ruger .257 Improved with 24 in. barrel, and it has performed very well on deer, with less tendency to shed the core than other Ballistic Tip-type bullets due to Hornady's Interlock ring. The only deer I took with a 130gr .270 SST was hit in the chest at 60 yards, and the bullet did spit the core at the high impact velocity at that range, so I don't think that is a typical performance for the SST (I recovered the metal jacket and base of the core when dressing the deer). All the .257 SST's have performed well, both terminally on deer, and ballistically at long range (I think the SST BC is around .500). I must say I like the Hornady SST bullet, considering it somewhat of an "enhanced" or "reinforced" Ballistic Tip. I think you'll do well with them in your .270, just start low with that IMR4831 and work up to what the rifle likes/tolerates.

SS

N8Gunnr
August 09, 2007, 16:34
Half a grain under MAX load of H4831
(start low and work up, watch pressure signs on your brass as you work the load up. ) in my case best accuracy came with near MAX load.

59.5 grains H4831 with Noseler 130 grn Ballistic tip........ Free Float your barrel.If your rifle is a Remington, and you have free floated the barrel, be prepared for sub MOA groups with that load. Experiment with cartridge OAL..... seat the bullet to a depth that it just barely engages the lands ...... your groups should then shrink even more in size. If you have a digi scale, you may even want to segregate your cases by weight......in my experiance, the best cases for .270 have been FC and WIN. Remington cases are made thicker heavier brass.
Good luck and enjoy your .270