22BR case forming from 6BR brass and... opinions wanted...

[CT10ring]

I have a nice shooting Rem 700 adl , .223, Lilja bbl. 26" 1/7 twist Sendero profile. I had it made for me and it shoots well. Now that I am shooting at little critters at 500-650 yds, I have a feeling a bigger case will do better for say, a .224 75g Amax.

question #1-- Is forming 22BR brass from 6BR Lapua brass as easy as getting a 22BR die , and presto, with one stroke of the ram, out pops a 22BR case? Neck turning is just not for me, fyi.

#2 Is the speed/ accuracy of the 22BR as great as I read, enough to warrant the re-chambering, bolt case-head mods, etc. From what I have read here, it seems like 22BR would be a significant speed booster.

I have 2-22-250's (1/14 twist) and thought I'd "try" a new to me cartridge.

#3 or should I make my Lilja 1/7 tw bbl Rem 700 into a 22-250/ 22-250 AI?

barrel is like new. any opinions how a 60 g vmax would hold up in 1/7...?

Thanks for taking the time to respond....

 

[TominSWNY]

Yes one pass through the 22BR die will give you a formed case.

If you can live with this kind of accuracy the go for it.

 

[CT10ring]

uh, the proof is in the pudding. Which you obviously eat by the spoonful...
thanx & nice shootin'.

 

[ReedG]

The case forming is exactly that easy ... BUT ... I have to turn the necks after resizing. I was surprised to find that my 6BR brass with carefully turned .012 necks would not chamber in my Cooper 22 BR after resizing. Upon examination, the .012 necks had become .015 to .016 necks when sized down to .22-cal. The .016 necks with a .224 bullet seated would not chamber in the Cooper which has a .250 neck. IMHO you will be looking at turning the necks.

 

[CT10ring]

great info, maybe I should get a 22BR f/l sizing die, form some 22BR, load some dummies, measure & then give info to smith. thanx. Maybe a given that many neck turn, but really do not want to....thanx.

 

[Kenny474]

If you don't want to turn necks, make sure you buy enough of the same-lot brass up front to last the life of the barrel, load a few dummy rounds and have a "no-turn" reamer cut to suit the brass you have. Simple as that, and no turning will ever be needed.

I have a 22BR reamer coming, though I will need to do a slight clean-up on my brass, but no major turning. Just enough to remove any donuts or inconsistencies in thickness that may come from necking down. I just figure that .015 is a bit thick and it won't hurt to thin it a bit anyway.

Kenny

 

[NorCalMikie]

"Preacher" has a 22BR reamer with a .254 neck that he's chambered 2 barrels for me. No neck turning, just run the 6BR (new or fired) cases through a 22BR full length die. Lapua or Norma. All mixed, no problem. One pass, load them up and head to the range. Consistant one holers with not much work. A 5 shot group at 100 yards that you can cover with a dime is the norm. Some days even better.
I bushing size and bump the shoulders after that. Throw in a body size if the cases start getting snug in the chamber and your brass will last a "long time". I've got 15 to 20 firings on some my brass and it's still going strong.

 

[CT10ring]

more good info & groups. I'm thinking this is a very accurate cartridge. Very.

 

[alf]

I think I'd leave the ADL alone, as I find the 223 with the 75 A-Max good to around 850 or so on prairie dogs. But, being it is a low mileage barrel, maybe punch it out to a 223 Ackley or a 22-204 and pick up 100-150 fps. To me, this gun is off limits for the 22 BR, as it involves a new bolt or opening up the bolt face.

I'd probably rebarrel one of your 22-250's into an 8 twist 22-250 Ackley throated for the 75 A-Max. There's no reason to consider a 60 grain anything when long range is on the menu. You will still have a 14 twist 22-250 for that job.

 

[CT10ring]

Alf, yes, The bolt has to be opened up, $ to rechamber...all comments are sound, logical and appreciated. I have never tried using the 75g amax in 223, period. Just a 80g JLK, which shoots great @ 100 yds, but my only time shooting at PD's, really windy, and I have no real idea how it would do w 75's. Hmmmm....

 

[rbertalotto]

Why not just buy 22BR brass..............

 

[Kenny474]

Why not just buy 22BR brass..............

Where have you seen 22BR Lapua brass? I have never seen it advertised on the Lapua site, nor anywhere else unless it was someone selling brass they had necked down themselves. Seriously, if you know of somewhere to purchase high quality 22BR brass, let me know.

Link to Lapua's brass page: http://www.lapua.com/index.php?id=852

 

[rbertalotto]

Lapua never made 22BR brass, but Remington did. I have 10 boxes of it, headstamped 22BR........

Everytime I mention this I get a challenge that NO ONE ever made 22BR brass.......then I have to haul out the pictures and prove it.

 

[expiper]

lotsa ways to skin a cat

Iv been a tinkerin with the 22 BR for a few yrs and have used several variations of brass....and must say "you dont stop learnin till they are throwin dirt in your face"...I hav had Rem. brass headstamped 22 BR ...buttt...they were still the same dims as .308,,,,and needed drastic resize and trim and ream etc....are the .22 BR brass that you hav allready to stik a bullet in and shoot..if so has somone all ready sized em down...Im puzzled tooo.....and most of the time with Lapua brass (old Paper box) you get neck wall thickness of around .0135" which givs loaded dim. of ~.251" which works gr8 with .254" nk for a No turn combo.....the new blue box stuff is supposed to be a lil thinnner ...which will work also...
What FB is poplular with the 75-80 (even 90gr) bullets....all of my experince has been with chambers cut in the 1970's with zero to .030" FB for use with 52 gr short range benchrest bullets....maby we can all learn from this thread....Roger

 

[CT10ring]

expiper, still throwin lead. 2 meanings, I think. PEX is a whole different animal.
well, for any who are interested.

#1. 22 BR looks to be a super round.
#2. I need to learn more about my ability shooting/loading 223/ 75gAmax at long ranges.
#3 Staying with the 223 & learn to shoot it....

22BR, one day...

 

[TominSWNY]

I would swap the 75 a-max for the 75 Berger. I have interment accuracy with the a-max. A good group at 100 yards and it diminishes at 300 and beyond. I can not get any consistence. In the BR or the 223 with 7 twists.

 

[CT10ring]

thanks, I'll try em. 75g match varmint?

 

[TominSWNY]

22 cal 75 Grain Match Target VLD

0.224

75 GR

0.423 BC G1

0.217 BC G7 VLD

1 in 8" or faster

22421 Product #

 

[HillbillySniper]

Try out the 223AI! I built one this past summer and shoot the 75gr amax well out to 850-900 yards. Ive hit an 8 inch gong out at 850 yards with easy just have to be on point with the wind. Its easy to fire form the brass you already have the brass all you need to do is ream the chamber to the 40 degree shoulders change to the ackley dies and shoot it no opening up the bolt face.


Hillbilly

 

[CT10ring]

well that is the first thing my gunsmith suggested when I presented the 223 to 22BR idea! It makes good sense & gives good value , however, I am resisting having to fireform brass, or neck turn. I will prob own a 223 AI one day....I have a 22-243 that slings the 75's a long way, too. thanx for the heads up...