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Posted By: elkaddict 270WSM - 01/21/18
For a winter project, I picked up a Tikka3x and am looking for suggestions on load development for hunting mediums game. I’ve got RL 22, IMR4350, MRP, H4831, H1000 and IMR7828 on hand (still waiting for delivery of RL 26 & 33). Bullets on hand include 130 and 140 Accubonds and Partitions, and 130 Interlocks. Any suggestions on COL for the accubonds? Have you found any benefit accuracy/velocity wise with a crimp? Is there a hunting bullet I haven’t mention you’ve achieved great accuracy with? This joins a 7mm STW, 300 Wby, and 340 Wby for hunting at range so I’m not seeking a do it all rifle/load.
Posted By: MichiganScott Re: 270WSM - 01/21/18
My 270 WSM Featherweight shoots tiny groups with 130gr Ballistic Tips and Rl-17, although neither are on your list. The Featherweight has a long throat and my loads are well over SAAMI spec length by quite a bit, but accuracy was much poorer at the listed max..
Posted By: elkaddict Re: 270WSM - 01/21/18
Scott, what velocity are you shooting the BT, and have they proven too explosive on game at close range? I’m certain they’ll perform well at distance.
Posted By: hanco Re: 270WSM - 01/21/18
Try the 140 Accubonds and IMR 4350. Works great in the Four I load for.
Posted By: Hesp Re: 270WSM - 01/21/18
Winchester 70 270WSM a friend purchased, 24" Bbl. We worked up a load intended for elk. It consisted of the Barnes 130gr TSX & Western Magnum powder, CCI LR mag primers & Win brass. The bullet was seated so as to be .050 off the lands. It chronographed at 3304FPS. That rifle has now accounted for three elk. Every bullet completely penetrated thru the elk. None recovered. Three shots three elk. Western list 75 grs of this powder for the 130gr bullet. If you use this bullet depending on the rifle best accuracy could be any where from .020 to .070 off the lands. Start a few grains low & work up.
Posted By: coltchris Re: 270WSM - 01/22/18
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Originally Posted by hanco
Try the 140 Accubonds and IMR 4350. Works great in the Four I load for.


Agree, shoots great out of my ULA 270 WSM @ max. load.
Posted By: MichiganScott Re: 270WSM - 01/22/18
Originally Posted by elkaddict
Scott, what velocity are you shooting the BT, and have they proven too explosive on game at close range? I’m certain they’ll perform well at distance.


I'm getting 3200+ FPS. It just happens that is the same I get from factory ammo. The only animal I have killed with that load was a small whitetail at 150 yards. In one side of the ribs, out the other. Everything in between was scrambled. I've got a box of 130gr Accubonds to try, but I have no doubt that it will work just as well. My experience with the Accubonds in other calibers is that the Accubond will destroy less meat that the Ballistic Tips if the shoulders were hit.
Posted By: wilkeshunter Re: 270WSM - 01/22/18
Originally Posted by hanco
Try the 140 Accubonds and IMR 4350. Works great in the Four I load for.



Yep, a great combination. Mine shoots 140 Game Kings over IMR-4350 very well also.
Posted By: elkaddict Re: 270WSM - 01/22/18
For those shooting 140s, what kind of velocity are seeing?
Posted By: 79S Re: 270WSM - 01/22/18
Find some mag-pro for the 270 wsm.
Posted By: magshooter1 Re: 270WSM - 01/22/18
Originally Posted by 79S
Find some mag-pro for the 270 wsm.


Indeed. My Sako A7 Tecomate likes 130g NAB's over Nosler's max listed charge. Shoots right at 0.5" at 100yds. My chrony battery was dead so I have to go back to the range sometime to determine the actual velocity. Nosler says 3389 fps so I went with an assumed 3000 fps and plugged that into my ballistics calculator app and zero'ed if for 300 yds. My range check proved to be dang close so I went with it. Took two good bucks at 325 and 402 yds respectively. Both complete pass thrus. Picked up a Tikka T3 in .270 WSM as a back up and that's the load I'll start development with.
Posted By: WEL Re: 270WSM - 01/22/18
130 gr accubond R17, CCI 250. Tiny holes at 100. 3200 fps 22" barrel. Now R17 is fairly temp sensitive. So is 4350. Have been thinking about trying the new R16. This load has killed a 300# muley no problem. Love the accubonds.
Posted By: Tejano Re: 270WSM - 01/22/18
I am shooting 140 Accubonds and Interbonds with 69 grains of R 25 and now R26 too. Both get around 3200 fps and have been excellent for Deer and Hogs. I have not used this combo for larger game but would not hesitate to do so.
Posted By: montanabadger Re: 270WSM - 01/22/18
Reloader 26 140 grain accubond, 3205 FPS, Good groups.
Posted By: MightyPeace Re: 270WSM - 01/24/18
Been reloading 140gr AB's in my 270WSM's (two in T3 LS models / 1 in a Sako m75ss) since 2005 with Retumbo. GREAT SHOOTERS !!! Elk moose bears deer and the odd wolf and coyote ...
Posted By: dingo Re: 270WSM - 01/25/18


I bought a Winchester Model 70 laminated classic back in 2002 when the 270WSM first appeared on the market. I've primarily used 140gn Nosler Accubonds and H1000. It's an accurate combination that kills well.


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Posted By: elkaddict Re: 270WSM - 01/28/18
Thanks for your responses. For those shooting accubonds, how far off the lands is optimal?
Posted By: fremont Re: 270WSM - 01/28/18
Originally Posted by elkaddict
Thanks for your responses. For those shooting accubonds, how far off the lands is optimal?

Maybe longer than you think.

https://forum.nosler.com/viewtopic.php?f=4&t=32598
Posted By: Model70Guy Re: 270WSM - 01/28/18
I get 3400 fps with 130 Ballistip tips and Accubonds and old style 7828in my Kimber Montana. Bullets are seated right on the lands
Posted By: hanco Re: 270WSM - 01/29/18
I load mine at factory length, I always try that first.
Posted By: Reloader7RM Re: 270WSM - 01/29/18
All of the powders you have on hand will work, my first grabs would be 4350 and MRP for the bullet weight stated. My two 270WSMs do quite well with both R17 and H or IMR 4350 with 130-140 pills.

I'm running 130TTSX at 3265fps ahead of IMR 4350 in my 23" m700 and 130NPTs at 3230 ahead of R17 in my T3. The 130 Partition at 3200+ is flat wicked on deer size game. The TTSX works great as well and will penetrate crazy good, but for deer size game, I like the larger wound channels of the Partition.

I'm going to run the 130 TBTs in the T3 next year just to see how they compare to the NPTs. The TBT is definitely a more sexy pill and I will say I'm partial to tipped pills. Between flattened tips in the mag and chewed up tips from loading/unloading, the change will be welcome. I still love NPTs, but I'm reminded of the reason I got away from exposed lead tipped pills years ago.

Good luck with the new rig.

loder
Posted By: Bighorn Re: 270WSM - 01/30/18
elkaddict,

I load my .270 WSM with RL22 powder and the 130 gr. Nosler E-Tip for 3300 fps out of my 24" barrelled custom Vanguard. This load is very accurate, and works great on deer- last two I shot with it were both over 300 yds, both pass-throughs and dead deer. The E-Tip has given me better accuracy than the Barnes TTSX, Accubond, or Accubond LR bullets. I believe .270 and 130 gr. bullets were made for each other!
Posted By: elkaddict Re: 270WSM - 06/04/18
I finally found a low wind day to shoot loads I’d worked up with H1000 and RL 26. Seated to max length for the Tikka mag, accuracy was in the 2” range for both powders. I was a bit surprised to see the nosler recipes showing pressure signs with book loads given the longer throat. I’ll play around with IMR 4350 and 7828 next. If those don’t shoot, I’ll drop down to 130 Partitions. Interesting, my Tikka in 270win wouldn’t shoot accubonds well either but 130 Partitions and Interlocks shot really well. Chrono battery was dead but I will say the 140 Accubonds appeared to be smacking my 300yd gong every bit has hard as my 7STW with 160 Accubonds and notably harder than the 30-06 with 165s. I’m hoping I can get it to shoot.
Posted By: beretzs Re: 270WSM - 06/04/18
Any pattern to the groups you were shooting? They may want to be seated shorter. H1000 and 26 are pretty danged good in the few WSM's I have worked with. 7828 is another that worked really well in the past for me as well.
Posted By: elkaddict Re: 270WSM - 06/04/18
No real patterns at all.
Posted By: ckat Re: 270WSM - 06/05/18
In my Tikka, I shoot the 130 NBT for my WT load. For tougher game, I switch to the 130 NAB. Virtually the same POI with 63 grains of IMR4350 at 3250 FPS. NBTs shoot sub-1/2 MOA. NABs are sub-3/4 MOA. I'll have to verify COAL.

This is typical result. Ram was 370 yards. Fast forward to around 1:01 to miss all the fluff...
https://www.youtube.com/watch?v=7FbMbf34a40&feature=youtu.be
Posted By: mjbgalt Re: 270WSM - 06/05/18
130 nosler ballistic tip, 60 grains of h4350, work up to your comfort level
Posted By: Tejano Re: 270WSM - 06/05/18
Originally Posted by elkaddict
For those shooting 140s, what kind of velocity are seeing?


I am getting 3200 fps almost on the nose with a max charge of either R25 or R26 at 69 grs. for each. I am not sure which is more accurate as I stopped testing them when each consistently shot under an inch. R22 & MRP worked well too but about 50-75 fos slower. I think I will go to R26 completely for the improved temperature stability. The same load has worked with Interbonds and the TSX. I arbitrarily started with 140s and see no reason to change but the 130s are speedier. In my rifle seating to the cannelure or for mag length the bullets have a fair amount of jump even though there is hardly any throat on the chamber.
Posted By: MightyPeace Re: 270WSM - 06/09/18
I used Retumbo with 215 Mag primers and 140gr Accubonds. Great loads / bullet combo - loved it. I had 2 Tikka T3 LS rifles in 270WSM. One rifle liked close to 69 grains, the other 71 if I remember correctly. Sold both to my inlaws and bought one in a mint Sako m75ss.

Had 7828SSC but never tried it as I was very happy with the results from Retumbo powder.
Posted By: 79S Re: 270WSM - 06/10/18
Go buy some mag pro and don't look back!
Posted By: beretzs Re: 270WSM - 06/10/18
I’ve used Magpro, 7828, RL22, RL25, RL26, Retumbo and probably some others I’m forgetting. It has done excellent with all of them. I’d try pushing those ETips pretty deep before giving up on them. I haven’t seen the 270 WSM as a hard cartridge to find great loads with.
Posted By: magshooter1 Re: 270WSM - 06/12/18
Originally Posted by 79S
Go buy some mag pro and don't look back!


MagPro was the ticket for mine. All loads with R-22 grouped 1.25"-1.5". Switched to MagPro and the groups just kept getting tighter. Nosler book max of 72g shoots into just under 0.5" to 0.75" depending on me.
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