I have a .270 I would like to load with 90 gr Sierra's. I have tried IMR 4831 and H335 with no luck. What should I be looking at? Kind of new to working up loads.

I had pretty good luck with my buddy's Ruger Model 77R with 54.1 gr of IMR-4350 in 30-06 reformed brass, CCI-200 prmers. Mild load (pre-chrono days, so not sure what the velocity was), shot very close to the same point of impact at 100 yards as the 55.0 gr load with the 130 gr Nosler Solid Base. Although that particular rifle shot the 130 gr bullet a little better with H-4831.
Other powders that should work well with your .270 and the 90 gr Sierra HP (or speer 90 gr TNT, for that matter) are IMR-4064, Varget, Reloder 15 or 19, Accurate 4350. One that really sounds intriguing is the new IMR-4007, supposed to be in between 4064 and 4350, with short cut kernals of powder so it should meter okay in a powder measure.
Of course, only your rifle can tell you what it prefers. It may be very different than the .270 Win. rifles I have loaded for.

Would this be the good old .270 Win or one of the new WSSM blend? Also if you mentioned the rifle make and model, that might more closely correlate for responses.

I assumed he was referring to the "old long" .270 as opposed to the new "short fat" .270 that I am currently loading for. If he is actually inquiring about the .270WSM and 90 gr bullets, I would recommend IMR-4350, XMR-4350, Reloder 19, or Varget as suitable propellants that I have tried and obtained more than acceptable results with.

I used to shoot a lot of 90 grain HPs until I discovered the 110 grain bullets actually outshot them in tradjectory but I loved the low recoil. Prairie dogs sure bit the dust.....

Accuracy wasn't bad at about 1" or a bit more and I used H-414 in the 270 Winchester.

Thanks fellas. My rifle is a Ruger 77 with the tang safety. H380, 4320 and 4350 have all been recomended to me. The guys at Huntingtons suggested 4350 and after reading 2ndtimers post I will have to give it a try.

If IMR 4350 doesn't group try IMR 4064. You need a BULKY powder to fill that 270 case up.

quote:

Originally posted by snowman:

If IMR 4350 doesn't group try IMR 4064. You need a BULKY powder to fill that 270 case up.

I agree with the IMR 4064 recommendation. It's too fast-burning for heavier bullets (130 to 150 gr.) in the .270, but it should be good for 90 and 100 grain ones.

I used to load some 90 gr. bullets when I had a 270. This load worked great in my Remington:

90gr. HP
Win. Brass, WLR Primer
Loaded Overall Length=3.200
Varget=52gr. 3450fps.

Bob

Another vote for IMR4064. I too have a Ruger M77 with the tang safety in 270 Win. It has the slender tappered barrel, and seems to like H4831 and IMR4064. I have not tried loading 90gr bullets though, only down to 130gr projectiles. What little I have tried to load with IMR4350 was not nearly as tight as the IMR4064 did. No chrono back then so I don't have velocity data, was below (Lyman 48th) max loads.

Well looks like I am in good company here...

I also was going to suggest 4064... that is what I load..

however, when you are out of that, substitution of similar burn rate powders do a good job also...IMR 4895, RL 15, Varget, W 748, BLC 2

If you can live without max velocity, RL 7, IMR 4198, SR4759, IMR 4227 giving an MV right at about 3,000 fps make some good low recoil., and pretty darn accurate loads with that 90 grain HP...

I just tried a few one year on prairie dogs, and only shot about 10 rounds thru my Model 70... but it sure opened up those p'dogs I hit, like a can of worms! Turned them inside out....

Try RL-15. I use it in my 270 with Speer 90 gr TNTs. 53 to 54 grains will give you 3300 to 3400 fps and in my gun under 3/4 groups with only a 2x7 old Leupold scope.

One of the more fun rounds to shoot P-dogs with. You can't see the hits because of recoil but you sure can hear the oohs and aahs of those watching.

Really a nice way to practice for big game hunting. We do a lot of "walk abouts" when shooting P-dogs, that is get out and walk a mile or so to get to towns way off the beaten path. When doing this, you get a chance to shoot sitting or kneeling and find out how good you are on small targets. Thank goodness most of those P-dogs haven't been shot at much and you can get to well under 100 or even 75 yards on them.