I've been trying to find that "just right" load for my new .280. I like shooting the 160gr NP. Anyone have a good 160gr load they can share. So far I'm getting best performance w/ IMR4831. Thanks! Come on Frank N. you are a heavy-for-caliber guy!
Give IMR7828 a try. I get best accuracy and velocity with this powder. My hunting load is 58.0 gr 7828, Remington brass, CCI 200 or Fed 210M primer. Rifle is a Weatherby LT with a 24" barrel.
Posts: 442 | Location: Way out west | Registered: 28 March 2001
I have done pretty well using IMR7828 with both 160 and 175 NP's. I don't have any data as i'm not home.
BTW........we have been getting pretty decent moisture about weekly. Raining very nicely right now with a little snow up high. This years season is shaping up already!!
FN
Posts: 950 | Location: Cascade, Montana USA | Registered: 11 June 2000
Thanks guys. I had tried one load w/ 7828, but I'll tinker. Frank, hopefully we'll have good hunting in Montana this season. I'll definetly set aside some time for a visit. I'm not sure when we'll be up, depends on whether or not I draw a RM goat tag. regards
Posts: 7752 | Location: kalif.,usa | Registered: 08 March 2001
You guys are making me remember things that make me cry. I best load in a 280 Rem WAS 160 Nosler & 59.0 gr of Norma 205 @ 3000 fps. That was 30 years ago from the Speer # 8 manual & the velocity didn't quite reach the quoted 3042 fps. Norma no longer makes that great powder. Boy i wish they did! Please don't try to tell me that Norma MRP is the same. It Is not.
Posts: 8354 | Location: Jennings Louisiana, Arkansas by way of Alabama by way of South Carloina by way of County Antrim Irland by way of Lanarkshire Scotland. | Registered: 02 November 2001
Looking back over some notes, I found the following on 160 grain bullets in my .280, which is a Rem 700 Mt. Rifle with a 22" barrel. All loads with Rem brass & Fed 215 primers and are averages for 5 shots
160 Gr Sierra BTSP
56.5 RL 22 Vel Avg: 2814 (high 2785 Low 2871) 57.5 RL 22 Vel Avg: 2909 (high 2888 Low 2926)
160 Gr Nosler PT
57.5 RL 22 Vel Avg: 2781 (high 2801 Low 2755) 55.5 IMR-4831 Vel Avg: 2757 (high 2774 Low 2741) 58 H4831 Vel Avg: 2815 (high 2787 Low 2715)
These are max loads, mostly listed above book maxes for the .280, so proceed with caution. It seems .280 data is usually pretty mild in print because the round was originally targeted for autoloaders, but I have much more experience with the .270 and these charges are in line with loads listed for the .270. I didn't do much more loading with 160s because I couldn't seem to get the accuracy I wanted with this bullet weight and heard .280s tend to be finicky as to what they prefer in terms of bullet weight. My limited experience with the cartridge agrees with this (1 Rem 700 Mt. Rifle & 1 A-bolt I loaded for a friend), and I happily settled on a max load of IMR-4831 that launches the 150 NP at just over 2900 fps with MOA at 100 yards. My .280 definitely prefers 145-150 gr. bullets (vs 140s & 160s) and for some reason, I also get better velocity (close to 100 fps) with boat-tails (sierra / speer) than with flat base (nosler / hornady) given similar loads.
Good Luck,
Lou
Posts: 333 | Location: Dallas, TX, USA | Registered: 15 January 2001
I have good success with 160gr Nosler Partition and 56.5 gr of H4831sc. Try this web page for more information, it recommends IMR-7828, I have never tried it myself.
I used to use the NP 160 gr. at about 2750 fps. Does a great job on elk class stuff all the way to 400 yds. I've switched to the 120 gr. Barnes XBT at 3200 fps. Do the math. The NP is a 66% retained weight bullet. That means it will weigh about 106 grs. if recovered. The X will weigh at least 108 grs. (90%). E
Posts: 1022 | Location: Placerville,CA,USA | Registered: 28 May 2002
Erim, I pretty much us the NP in all of my hunting calibers & have only recovered (1) bullet. That was a 210gr NP from my .338-06 @ 2750fps. Impact was @ about 120yds. The recovered bullet weighs about 162gr, that's about 78%. Good enough for me. The 'X' bullets just seem to be too hard to get good accuracy w/ in the rifles I own. The exception was a Ruger #1H in .375h&h, w/ 270gr 'X' it would usually break the 1" mark. I do have some 150gr FBX that I couldn't get to shoot out of my 7mm Dakota. Maybe I'll give them a try. I would think it would be a good longer range elk bullet.
Posts: 7752 | Location: kalif.,usa | Registered: 08 March 2001