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Hi ya'll. Been doing some development on my 280 AI. Have worked up some loads and got to 55gn 2209 (half gn over adi book max), 150gn LRAB's. Speeds a bit slow at 2830fps but shooting really well. The fallow at 325 didn't seem to care too much :thumbsup:. Anyone care to share their loads or experiences ( its a Tikka 22"barrel and 9.5" twist). Will be fun to have a tinker with. Cheers
One of my mates loads 280AI, with 162 amax and 150 ttsx, I'm sure he'll be happy to share info.
Thanks GWH that would great!
Pm Chainsaw. He knows a fair bit about said round
Speeds not everything (says the man with a slow load! :D )
I'm currently shooting 162 amaxs at a very low 2750fps using imr7828. Furthest shot with that load was 399yds and a very dead deer. I've the same pill going 2930fps with ar2209 but ran out and havent bothered to get more as I have other powders to burn through. using Vihtivouri n550 ive had 140gr accubonds going 3200fps and 150gr BTips going 3150fps. All sub moa loads. Waiting on some eld-x to turn up in the post.
G
Thanks guys for the replies.
Will pm chainsaw.
Started with 2209 as that's what I had in the cab. Totally agree that speeds not everything and pleased that got a good starter, but can always be betterer. Will try a 162/168gr projectile and possibly a powder change. Impressed how nice the 280 is to shoot. When are the eld's supposed to be available??
Thx, M
ElD-x are in the shop now
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@Dr. Watson ?
I would be real interested to hear what he got out of his forbes.
With the 162 Amax he runs 59 grains 2213sc in the nosler brass. Only 58 in the lapua brass, for 2890 in the Nosler, and hasn't chrony'd in the Lapua but expects about 2850.Quote:
Originally Posted by Munsterlander
7828ssc gave higher velocity but not as accurate.
Barrel length?Quote:
Originally Posted by GWH
Sorry, 24 inchQuote:
Originally Posted by Shearer
Just been in and picked up my adi powder order, and noted the 162 eld-x are on the shelf.
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barrel length is very important to get best velocity and benefit from 280AI. I'm running RL22 w 162AMAX in 24in bbl and getting 2850 fps at the accuracy sweet spot (0.3moa). Went up in load dev significantly above that (up to 2950 fps from memory) but groups opened up. 2850 fps gets me to 800 yrds for ethical impact velocities , which is more than I need in most situations.
RL22 is just about as hard to get as RL17 at the moment :wtfsmilie: ... but the new temp stable version RL23 is available in some Sth Is stores. ADI2217 would also be good alternative.
Standard 280 Rem with long throat 59gns N560 for 2910fps and very accurate.....Shoots better than I can
24 inch barrel
Was down at 2750fps with pressure signs with ADI powders
Thanks for all the info. Really helpful. Keep em coming. Will report back with some results in next few weeks.
On an aside had gunworks do the machining and really happy with their work. Also Darren at Dpt. While he sold me the suppressor he recommended gunworks do all the work to save on logistics.
M
280 Ackley
168 VLD
N560 @ 60.0
Fed 210
2900fps
Out of a Tikka conversion.
This is hot ***beware***
Anyone tried Reloader 26? Thinking of shifting from temp unstable N560.
If you do try it, give it a whirl in your 260Imp as well. Lower pressure and less stress than RL17 for similar results.Quote:
Originally Posted by Tikka7mm08
That sounds good...
Loving my 280AI and Reloader 26 combo. Below table I have only adjusted the Ba upwards to match actual speed with RE26 specs.
Attachment 109618
On this table I have edited the RE17 specs to standard RE26 with un-adjusted Ba:
Attachment 109620
Here are LabRadar results from 2 61.0gn groups shot separate days (hot and cold):
https://uploads.tapatalk-cdn.com/201...85e09511b8.jpghttps://uploads.tapatalk-cdn.com/201...d959ae6cd3.jpg
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Here is 61.3gn no pressure signs:https://uploads.tapatalk-cdn.com/201...042cdb31df.jpg
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Norma brass, cci mag primer, 61gn RE26, 162gn ELDM, 24" Forbes...100yards.https://uploads.tapatalk-cdn.com/201...ffcd4d5ace.jpg
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Impressive, might have to try some RL26. My latest loads have been based on N560 giving me 2980 fps and sub 0.5 moa groups
N560 is a good powder in 280AI. I found 59.5gn for 2930fps was about top for brass reloading life. Have been very impressed by the RE26 SD's - single digit in 243, 260AI as well.
Mate uses just over 60grs of 2225 and pushed the 180gr ELDMs at 3050fps~. Such an epic calibre
Hi how did RL26 go in your .260AI thinking of trying it in my .260.Quote:
Originally Posted by Tikka7mm08
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Still working on that...started too low (not a bad thing) and will sort once 243 is worked (RE26 great in that).Quote:
Originally Posted by 25/08IMP
Very interesting thread - RE26 seems to deliver results with a wide range of calibres. I’ve been running it in 7mmBM with very good results- speed & accuracy. Wonder how it would go in 284 or SAUM with bigger pills 160 - 180 gn ?
And looking at Alliant load data on line looks like really good speed in 7mmWSM..... nearly 100fps better than rem mag over a range of pills. Seems to suggest it might be the go for WSMs and other short mags like SAUM ? Any one tried this ?
@chainsaw
A lot of feedback on Taranaki Long Range shooters page on FB, many guys going away from RE17 and using RE26. Same velocity without the pressure. Especially like you said in the short fat cartridges. I'll be having a go with it once I run out of Re17 in 300 wsm.
thanks @McNotty - I dont do "face-plant" thing but that's good to know as I'm going to play around with some powder options for 7mmSAUM & 300WSM shortly. More so for the 7mmSAUM, have some RL23 loads ready to test for that, have been running 2217. Also wondered if RE26 might be good in 284win ? Pretty happy with my loads in 284 (2209, RL17 and Superformance), but hey if I can get more fps for less pressure then think about looking at it too.
300WSM have gone to Hybrid100V recently with very good results ~3050fps with 180 gn Berger VLD EH's and 0.5moa grps :thumbsup:.
I took the Tikka out the other day on a warm morning to shoot some steel, was getting constant sticky bolt and brass flow into ejector pin hole. Will try dial it back a grain with the Re17. It's funny how some guns hit pressure sooner, Monk is running exact same rifle setup as me, make, length, calibre, brass, projectiles, powder and his is fine with half a grain more than I'm at now. He was also getting the same speed at 62 gr as I was with the 63gr I'm running now.Quote:
Originally Posted by chainsaw
Bit of a pain, as it shoots consistant 1/4 inch groups...but lots of pressure :pissed off:
