223R With 90gr Bullets?

[ThunderDownUnder]

Jerry, thats a very nice group at 600yds! How large in moa is the 10 ring on the targets you use. In Australia we are using 1/2 moa for our centers in f-class.

I like the Amax 80 grainers and prefer them over the 308W 155gr bullets shot in f-std down under. I am not pushing them at 3058fps like listed on the target image you posted but at around 2960fps.

I'm curious to see if the 90gr Sierras can match or better the 80gr Amax and there is only one way to find out. My current chamber for the Amax suits the Sierras just as nicely so it wont cost me anything but a few loads in the new barrel when I get it to find out the answer.

Ian

This is the reamer I use!

 

[BradY]

I just cant wait to get my new barrel for the 22BRX- it will be a 7 twist to shoot the 90gr SMK's as well. I have been doubting they will stabilise, but after reading this and seeing its possible with a 223, then I know with my extra velocity, I will have no problems with it.

Going to be interesting putting it up against the 6BR's and 107SMK's out to 1000.

 

[Steveb]

I have been shooting a 22Br 1 in 7 Kreiger #17 contour with 90 grain Berger VLD's against the 6mmBR's and it will stay with or beat them. I haven't been pushing them too hard preferring to just match the 6mmBR velocity and use the bullets increased BC to my advantage. H4350 seems to be the powder to use with CCI450's. We been using the new IFRA target with the 34 mm V ring and the 22 BR will clean this target in windy conditions. Now I am trying the 90 VLD's in my 223 Rem with a Wydle chamber with mixed results. Velocity runs about 2780 fps in the 223 using H4350. Be careful using a 1 in 7 twist with 1 in 8 twist loads. Pressure seems to come up really fast. Steve

 

[Travelor]

I looked at the NRA rulebook and found NOTHING that limits the weight of the bullets used in an F/TR class rifle.

Where did you get the idea that the 223 is limited to 80 grains or that the 308 is limited to 155 grains?

Or are you posting from Canada or Australia?

George

 

[Rtheurer]

George

You didnt look in the right book!!!! You have to look in the Australian NRA rule book for Fullbore not the USA rule book under F class.
Hope to see you soon in November for our Mid Range match.

Ian.
It would be nice if you guys could get that bumped up to the 90's.

RussT

 

[ThunderDownUnder]

I looked at the NRA rulebook and found NOTHING that limits the weight of the bullets used in an F/TR class rifle.

Where did you get the idea that the 223 is limited to 80 grains or that the 308 is limited to 155 grains?

Or are you posting from Canada or Australia?

George

I'm from Oz,Australia) the name ThunderDownUnder should have given you a hint. I wish we had availability to other projectiles like you guys have!

 

[1000yardstare]

At the Canadian Fullbore Champs last August, there was no bullet weight restriction for F,R) in .308 or .223. I believe this is consistent with the other Palma countries.

But Canada also has F,F) which literally means Farquharson Farquharson,note the correct Scottish spelling) in honour of the originator of F Class, a DCRA shooter in the Province of British Columbia, Canada. He wanted to keep shooting with his buddies when his eyes and arms could no longer tolerate TR. And the rest is history.

In Canadian F,F), there is no bullet weight restriction is .223 but there is a 156 restriction in .308.

 

[JERRYHM]

There is no bullet weight restriction for 223 or 308 in the US Palma rules. There is a bullet weight restriction for 223 - 81 grains and for 308 - 156 grains in the US Fullbore rules.

Last weekend the High Powder Committee voted to change the US Fullbore rule on the 223 to 91 grains and left the 308 - 156 grain unchanged.

Jerry