.223 fast twist bullet choice

Woodlander

Well-Known Member
Could anyone tell me whether a 1:8 twist factory barrel would shoot 40gr bullets accurately, enabling one rifle to effectively be an accurate vermin rifle(with ballistics similar to a 20 cal)and 600 yard target rifle? Thanks
 

sir-slots-alot

Well-Known Member
Hi Woodlander.
I have had two Tikka Super varmints with 8 " fitted. Both would shoot 40 grn bullets ... Nosler were best out of SKB and Vmax.
Accuracy was around 75 MOA if you kept speeds to around 3600 fps which was sufficient for foxing. However the groups opened up as velocity and rotational forces increased.
I know some shooter cannot get them to shoot - I wonder if they have pushed them too hard.

So IME yes they will shoot - but accuracy and the ballistics was better when shooting the 50 or 55 grn bullets.. also consider the 53 grn Vmax.
 

scrumbag

Well-Known Member
Probably depends on how fast you drive them. I hear (though not seen) that if you drive the quite thin jacketed varmint bulletsat high velocity through fast twist barrels, they can delaminate.

(I have a 1:9 twist only shot 55-63gr bullets through so just hearsay I'm afraid)

Scrummy
 

mickeyluv

Member
My 223 with a 1 /8 would not shoot vmax Less than 60 g, nearly half the 55 g I put through it exploded, the target looked like I'd fired a 12 bore at it. Can't say for other brand ammo though
 

plumber01

Well-Known Member
I have a 1:9, it shoots 69 gn best, the smallest Ive used are 52 gn, and 55 gn Vmax are fine, they seem to be slightly worse the lighter I go. I dont wish to be rude , but why would you want to use a 40gn bullet ?, you can go to about 75/ 80gn with a 1:8, and it will be very accurate, and Im pretty sure if you use a Vmax it will kill a fox , and make a right mess of it, so why bother to use a light bullet that is far more likely to be bucked by the wind. Dead is dead . If your worried about flat shooting, my 69gn, zeroed at 100, is about a half an inch high at 50,(one click) and 3inches low at 200 ( 7 clicks) it does then fall to 12 inches at 300 ( about 30 clicks) but I can only remember hitting one at 300, and that was with a fmj , and it was crow feed after being hit. Most are shot at between 100 and 150, so its not hard to adjust. I would say, find what your gun likes and just use it, if you have a range where you can get plenty of practice, great, you will probably get used to your gun a lot quicker. good luck.
 

Woodlander

Well-Known Member
I shoot 32gr from a .204,50gr from a .222 and would like a .223 to shoot the heavier bullets. If it could shoot the 40gr and 55gr bullets as well,I could maybe sell the other two,just a thought.
 

Southern

Well-Known Member
I think you are asking too much, for a .223 which shoots 40-gr to 77-gr match bullets into small groups.

Since you are going to have to slow the lighter bullets down to get best accuracy, why not just decide what you are going to shoot and the heaviest bullet for that and then select that rifle. For example, if you are going to shoot just foxes, a 1:12 will shoot 52 to 62 well. If you are going to shoot foxes and small deer, a 1:10 will shoot 52 to 64 very well, and 69-gr well. I have 1:12 bolt action, and AR-15s in 1:12 and 1:9 ( USMC standard, made for SS-109, shoots 69-gr match very well, too).
 

Muir

Well-Known Member
I've got a 1:8" Ruger American. Shoots 52 to 69 grain wonderfully. I have not tried 40 grain VM but then, I don't see the need. My slow-boat 69 grain Nosler load tags steel plates at 800 once I get on target. The 400 yard warm-up target was a no brainer. I shoot prairiedogs out to 400 with the Nosler 52 grain BTs.~Muir
 

JTO

Well-Known Member
Until I read this thread, I was thinking of loading 40grn rounds for my 1-in-8" .223's, instead of considering a .17 hornet for rabbits out to 150yrds, but it looks like I would have been doing the wrong thing.
 

Muir

Well-Known Member
Until I read this thread, I was thinking of loading 40grn rounds for my 1-in-8" .223's, instead of considering a .17 hornet for rabbits out to 150yrds, but it looks like I would have been doing the wrong thing.
That makes no sense. One hundred fifty yards?? Are you worried about trajectory??~Muir
 

JTO

Well-Known Member
That makes no sense. One hundred fifty yards?? Are you worried about trajectory??~Muir
I've been using a 22lr up until now, when they are a lot closer. I'm worried about making a mess of the golf course greens. This is all taking place in the dark!
 
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ChesterP

Well-Known Member
I shoot 32gr from a .204,50gr from a .222 and would like a .223 to shoot the heavier bullets. If it could shoot the 40gr and 55gr bullets as well,I could maybe sell the other two,just a thought.
There is no problem , in theory, asking a 223 to group 40g or 50gr bullets into small groups, but many shorter bullets could well disintegrate in the barrel or shortly thereafter if you push them too hard from faster twist rifling. A 223 makes a reasonably accurate 600 yard rifle in still conditions but it depends what you're after. If its long range precision shooting you're after, I would say that sporting 223 isn't the best choice as the BC of the bullets (look at G7 not G1) means even slight winds will result in wider groups than larger, longer bullets from larger cals. I do shoot my 223 at 600 and have shot moa with it in still conditions at that range, but that's still too much for precision work. I know that the bench rest boys do well at these ranges, but a hunting rifle may be a more difficult proposition for half moa at 600 yds.

I use 69g TMKs in mine for longer ranges, but can also shoot up to 77gr pills. For vermin control to 300 yards, I use 60gr V-max which I load to 3150 fps. They are sub moa accurate in that load in my rifle so perfect for the purpose.
 

25 Sharps

Well-Known Member
I shoot 32gr from a .204,50gr from a .222 and would like a .223 to shoot the heavier bullets. If it could shoot the 40gr and 55gr bullets as well,I could maybe sell the other two,just a thought.
My 1:9 CZ .223 shoots 40gr, 55 and 69 gr accurately with the 40s being best of all!
 

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