Has anybody used a 22-08 and 90 grn bullets

jtoews80

jtoews80

CGN Regular
Rating - 100%
114   0   0
Location
Bonnyville, Alberta
Has anybody here played with a 22/308 and in particular with a 90 grn berger?? PTG has a print with .165 freebore that is supposed to be very accurate with this bullet.

It could be a lot of fun, but is certain to cost close to or a hair over $1000 too. $150 for a reamer, $150 for FL dies or $300 for custom precision dies, $400 for a barrel and $300 for installation.

Or a guy could go with a 22-243 middlestead for about the same performance.
 
22-250 took the 90's over 3200fps. I doubt you would want to go any faster.

I would go 22-250 improved if you want to have long brass life or the 22-6.5X47L if you want super strong brass.

22-308 and 22 Middlestead as so close that I would not bother.

Jerry
 
Quite possibly, it could fry barrels. Just seems like an interesting round. Great brass availible, great high BC bullets for it, and the case design will handle a huge amount of pressure too, so it'd be a bit forgiving.

I have a 22-250AI, but the twist is too slow for heavies, its a 12 or 14.
 
Look up the Lazzeroni, big Wby, and Gibbs based monster cases. NONE provide a substantial increase in performance VS the huge amount of powder burnt when comparing small cals.

Overbore is lots of fun and I have been there and built the rigs. You quickly see that a quantum increase in powder yields very little extra velocity unless you go to super long barrels.

The powder options plummet and wet sawdust starts to look promising. Maybe crushed briquets.

Then you get bullet blow ups due to friction while zinging down those bores AND the jackets distorting due to super high rates of spin AND pressure.

The 90gr VLD's ingeneral have thin jackets (you might get the Berger 90gr BT and Sierra 90gr MK's to sing though) so will not tolerate being pushed that hard. If the bullets make it, accuracy is rarely good.

About the only bullets that seem to tolerate this abuse are the MK's and Hrn Amax. I have heard some shooters pushing the 80gr Amax over 3600fps with decent accuracy

There are several boards with data on this super big case 22's. They have all been done before. 1970's was when they last saw popularity. Middlestead, Cheetah, Jaybird, Swift improved, 22WSSM are just some of the options.

I have an old article on a 22-284 so you aren't even into the silly big.

You have a middlestead so you are set up to go. You also have a 22.250ai that just needs a new pipe.

You already have plenty of experience with these zappers. A 22-308 is really not much different.

I spent years wildcatting so don't let me stop you build the next toy. But I don't think you will see the performance you are expecting and the bullets may just let you down.

Jerry
 
jtoews80 said:
Lol, about nailed it. I'm building a 243 AI, I just happen to have a surplus 224 8 twist that'll finish at 30" and my brain got to thinkin. 243 AI is a lot more rational.
Click to expand...

I dont think you can build a 243 AI with a 224 barrel :) but a 22br would be a good choice imo ,with an 8 twist you could easily shoot 80 grainers and the br is a very accurate little cartrige.
Also cheap to load for around 29-31 gr of powder will do it.
 
You must log in or register to reply here.
Back
Top Bottom