Which powder for 243 AI

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Piper235B
Posts: 1
Joined: Mon Jul 01, 2019 10:02 pm

Which powder for 243 AI

#1 Postby Piper235B » Fri Aug 16, 2019 9:35 pm

G'day,
First post!
I'm having a rifle re-barrelled into 243 AI with 1:8" 28" heavy varmint barrel. This will be a plinker, varminter gun out to 500m
I'm planning to shoot 105's initially.
But I'm after thoughts from the brains trust here on which powder to choose for potentially the best accuracy/speed. I'd like to take advantage of the little bit of extra case capacity and barrel length.
I think my options are (1) ADI: 2213SC; 2217; 2225 or (2) Win: 760; 780 - although I've heard rumours Winchester powder is going out of Australia - rumours only!
ADI powders are generally easy for me to buy so I'd prefer to stay with them; but I do use Win powders and will continue to do so whilst they are available.

Thanks

Cheers
Piper

ben_g
Posts: 166
Joined: Sun Apr 24, 2016 7:37 pm

Re: Which powder for 243 AI

#2 Postby ben_g » Fri Aug 16, 2019 11:19 pm


GSells
Posts: 502
Joined: Sun Aug 13, 2017 11:04 pm

Re: Which powder for 243 AI

#3 Postby GSells » Sat Aug 17, 2019 10:44 pm

Piper235B wrote:G'day,
First post!
I'm having a rifle re-barrelled into 243 AI with 1:8" 28" heavy varmint barrel. This will be a plinker, varminter gun out to 500m
I'm planning to shoot 105's initially.
But I'm after thoughts from the brains trust here on which powder to choose for potentially the best accuracy/speed. I'd like to take advantage of the little bit of extra case capacity and barrel length.
I think my options are (1) ADI: 2213SC; 2217; 2225 or (2) Win: 760; 780 - although I've heard rumours Winchester powder is going out of Australia - rumours only!
ADI powders are generally easy for me to buy so I'd prefer to stay with them; but I do use Win powders and will continue to do so whilst they are available.

Thanks

Cheers
Piper

I don’t have any experience with 243 ai . But I’ve had a little bit of experience with the Venerable 7/08 ai . My thoughts too would be 2209 and cci 200’s or br2’s . 2213 sc may even work with the smaller diameter cal . 2213 sc is too slow for the 7/08 ai . Be careful and work up loads carefully.

You can even fireform with pistol powder and cream of wheat .
I did a thread once I think under cream of wheat fire forming , on this site . Again be careful with that too as you can blow yourself up if not careful. Everything in moderation.

Barossa_222
Posts: 179
Joined: Sat Feb 08, 2014 6:58 pm
Location: Barossa Valley

Re: Which powder for 243 AI

#4 Postby Barossa_222 » Sun Aug 18, 2019 12:27 pm

I don't know about the 243AI, but I would assume 2209 or 2213SC would be a good starting point. Having said that, a mate of mine runs a 260AI and is getting good results with 2217. ADI lists all of the above powders with a 105-107gr pill in the standard 243 so I'd be starting with near max loads in the standard cartridge and working up until I hit pressure.

disb
Posts: 68
Joined: Thu Jan 18, 2018 2:56 am

Re: Which powder for 243 AI

#5 Postby disb » Sun Aug 18, 2019 10:16 pm

I run a straight 243 with 2217 and 105hybrids


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