280 AI information Blog

Get or give advice on equipment, reloading and other technical issues.

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GSells
Posts: 798
Joined: Sun Aug 13, 2017 11:04 pm
Location: Qld

Re: 280 AI information Blog

#76 Postby GSells » Wed Mar 13, 2019 9:56 am

Ackley kid wrote:Graham
What did your FF 30-06 cases end up measuring when formed . I had a box of Lapua arrive today and the few pieces I plucked measure 2.484-2.485 OAL in parent form . I image should see 2.480 or shorter once formed . Got any numbers ?

Hi Mate , I’ll measure when I get home and have a look .
Regards Graham.

GSells
Posts: 798
Joined: Sun Aug 13, 2017 11:04 pm
Location: Qld

Re: 280 AI information Blog

#77 Postby GSells » Wed Mar 13, 2019 6:27 pm

2.4595 :?

Ackley kid
Posts: 10
Joined: Sat Mar 09, 2019 11:40 am

Re: 280 AI information Blog

#78 Postby Ackley kid » Thu Mar 14, 2019 3:09 am

Thanks Graham . Yeah pretty short . My chamber is 2.520 max / 2.510 trim . Appreciate the goesintas

bad_primer
Posts: 92
Joined: Fri Mar 24, 2017 9:58 am
Location: ACT

Re: 280 AI information Blog

#79 Postby bad_primer » Fri Mar 29, 2019 9:07 am

For the .280AI gurus here, what size bushing are you using for neck sizing?

Ackley kid
Posts: 10
Joined: Sat Mar 09, 2019 11:40 am

Re: 280 AI information Blog

#80 Postby Ackley kid » Fri Mar 29, 2019 3:04 pm

I’m not the 280 guru.... but generally 2-3 thou under loaded round works well . So .310 loaded .308-.307 bushing . Bushings seem to vary some by manufacturers so usually requires a little experimenting . We are still covered in snow here , but Melt is coming fast , so hope to start load development on mine in 2-3 weeks

willow
Posts: 567
Joined: Sat Aug 15, 2015 9:51 pm

Re: 280 AI information Blog

#81 Postby willow » Fri Mar 29, 2019 7:55 pm

I use a .307 bushing...

GSells
Posts: 798
Joined: Sun Aug 13, 2017 11:04 pm
Location: Qld

Re: 280 AI information Blog

#82 Postby GSells » Sat Mar 30, 2019 4:57 pm

bad_primer wrote:For the .280AI gurus here, what size bushing are you using for neck sizing?

Hi Mine is a tight neck at .307 . I neck turn also at about .304 , press a projectile in and go a thou or 2 lower than that . Can’t remember exactly what that size is ?

As for the 280 ai .... I’ve sent my scope off to be looked at and have been staring from scratch . My whole shooting technique!! So was the cal Guilty?? No most definitely not ! So once as I’ve said previously. I get my MOA scope back and the .284 w is back shooting well again ( well it’s shooting well , just the nut behind the butt needed some work lol) . I’ll jump back in with its development, but at a slower speed and should have brilliant barrel life !

So therefore, 280 ai is not guilty at this stage !!

GSells
Posts: 798
Joined: Sun Aug 13, 2017 11:04 pm
Location: Qld

Re: 280 AI information Blog

#83 Postby GSells » Mon Apr 22, 2019 3:34 pm

Well , finally, some good news for 280 ai faithful! I had a good training session with the 280 ai today in blustery mirage conditions today at 1010 yds! Seems after I sent my scope away and reinstalled it , the 280 shoots and my form is back on the mend !
Below is just some 100 m testing and mag speed data and et screen shots 1000 yds . I’ve backed off to around 2950-60 FPS with 180 Berger and vld’s shooting equally as well as each other. I’ll shoot the Ackley at Mucka with the slow load out to 800 yds and use the fast load 900 yds onwards!

Believe me , feels great to be getting back in the muddle again!
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