I recently purchased a thumbole stock Howa 1500 with a bull barrel in .223 caliber. I am trying to figure out what all size bullets I can shoot through it. Someone told me that it depens on the twist of your barrel but I cannot find this information anywhere. I'm not sure if I can shoot 55 gr, 75 gr, or what. Can you guys please help me out!
Does anyone know what twist my barrel is? I found somewhere online that it is 1 in 12" twist....can anyone verify? If it is 1 in 12", what size bullets can I shoot?
In addition, can you give reccommendations on what the most accurate cartridge and/or bullet has been for you. I would like to begin reloading in the future so I'm trying to figure out what would might be the best place to start. Any information is appreciated.
you can check the twist yourself with a cleaning rod.
put a brush on a rod, then put masking tape on the rod and scribe a line down the rod parralel with it.
shove the rod into the barrel,
mark the tape where it lines up with the rear of the action, with the parralel line in the up position,
then push the rod into the barrel untill it rotates one turn, and line is in up position
mark again at rear of action,
remove rod and measure between the two marks along the parralel line. if for example its 9", you have a 1in 9 twist.
as a general rule a faster twist will allow for heavier bullets
i would still advise you to check it yourself. with a 12 twist you will probably need to use bullets of 55 grains or so. some of those light blitz bullets are devestating on varmits at those distances.
I have had the Howa Varmiter suprem for over 4 years and love it. I dropped in a timeny trigger, and beded it.(if your trying to learn to bed its pretty easy).
For loads, It shot the 52 Serria HPBT really well, The 55 gr noslers, well, 50 gr Vmax, but I settled on the 40 gr vmax behind 28 gr W748. It will shoot .75 MOA most of the time and will do better, MUCH better.
It holds up well to 300 yrd in little wind, but If i want to shoot futher I have different clubs for that.
It should have a 1-12 twist, I might stabilize a 60gr but that is pushing it. I would stay 55 gr and below.
I got a Howa 1500 varminter in 223 many years ago. I tried and tried to get the rifle to shoot 55-60 gr bullets, it would not, not at all. 1.5 moa was about the best I could get.
I wanted as much reach as I could get in the 223 and did not really intent to shoot any lighter bullets but because of its lack of accuracy with the medium weight bullets.
I had a box of 40 gr Blitzking bullets sitting on the rach and figured I would try them before I moved the rifle down the line.
With those bullets loaded to around 3800 fps it was a legit 1/4 moa rifle for five shots. Again, I did not want to shoot the lightweight bullets but it shot them so well I just have a hard time pulling the barrel just to shoot the heavier bullets.
Not sure why it prefers the light bullets, its a factory barrel and is supposed to be the 1-12 twist as well. Just goes to show that you have to listen to your rifle and it will tell you what it likes, it seldom works that you can tell your factory rifle what you want it to shoot.
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