CZ 452 FS Accuracy compared to 452 Lux or other 452 models with iron sights
- Thread starter Bobbyv8
- Start date
- Location
- Montreal, QC
If barrel lengths are the same, Why would one be less accurate than the other? I'm assuming they are exactly the same rifle? (except for stock obviously). I'm no expert but cant see why one would be less accurate... Especially considering its a .22
Ps I have a cz455 American and is a great gun. Either way you can't lose I'm sure
Ps I have a cz455 American and is a great gun. Either way you can't lose I'm sure
Kind of an old wives tale the generally FS rifle are not as accurate as sporter stocks. With CZ's and I have had at one time one or more of each model in the 452 line. My FS rifle is the most accurate of them all, if you don't belive me go ask the boys in the CZ thread about their most accurate 452 rifle. FS
Fassteel is right. Of all my CZs, the 452 fs is the most accurate. If you are refering to accuracy using open sights, then the longer sight radius of the ultra lux helps with aiming, but does not make the rifle more accurate.
Don't confuse accuracy with with maintaining a constant point of impact. A free floated barrel does eliminate some issues that help to keep the point of impact more consistent in changing conditions, but in some cases,especially with light contour barrels, or if there are bedding issues, a pressure point can result in smaller groups. I purchased a used Vanguard sub moa rifle that had crappy bedding , so I bedded it properly, and fully floated the barrel, which actually resulted in slightly larger groups. I installed a pressure pad, which had the rifle shooting smaller groups than before I started working with the gun.
I have the LUX version and FS will be arriving at my door next week. Lux has a 25" long barrel, fs has 20.5" barrel. Longer barrels will inherently be more accurate as it stablizes the bullet better but with rimfires, this difference is minimal if any. I think 22 rimfire bullet achieves maximum speed at 16 inches so any barrel length beyond 16 inches won't make a difference. But what will make a difference is is the rifling rate of twist . Lux version has 1:16 which means the bullet will achieve full rotation as it travels 16 inches in the barrel. I am pretty sure FS rate of twist is 1:9 which means the bullet will achieve full rotation in 9 inches, whch further means that if the barrel is 20 inches long, the bullet will rotate at least twice in the barrel before leaving the muzzle so this would mean that FS is just as accurate or more accurate than Lux would be.
i think I am wrong for the rate of twist of FS version, I think it is the same as the Lux version, which is 1:16. 1:9 rate of twist applies to 17HMR, so if you want laser precision, get yourself 17HMR. I had a marlin in 17HMR once and, man, I shot 10 rounds and there was only one hole at 50 yards. It was incredible, and boring at the same time (I used sand back originally so then I got rid of the sand back to make a it a bit more interesting and tried off hand shooting).
Deg_Demora
New member
- Location
- Lower Mainland, BC
I have a 452 Varmint heavy barrel its very accurate. I did alot of research before I got mine. The jest i got was that anything from the 452 and 455 line are great it just depends on personal preference of whats comfortable and what your going to use it for.
gunrunner100
CGN Ultra frequent flyer
- Location
- NW Ontario
In real world applications, my 452 FS is a tack-driver. I was shooting at a grouse and thought I was missing. On final analysis, my first shot killed it and it flopped against a tree. Both my other shots were uselss, but hit the same point of aim.
Nice rifles regardless of what some may say.
Nice rifles regardless of what some may say.
What you posted is a badly flawed theory, that has been proven wrong a great many times. A 20.5" barrel is more than long enough to properly stabilize a bullet. The only accuracy advantage that a longer barrel does have, is that if you choose to use open sights, the longer barrel allows a longer sight radius. That does help with more precise aiming, but not with stabilizing the bullet. Have a look at the barrel lengths used in benchrest shooting, and you will see that a shorter barrel can be every bit as accurate as a longer barrel.
Agreed, I was speaking more generally. It makes no difference on rimfire rifles. However benchrest shooting often involves shorter but heavier barrels Heavy barrel reduces vibration of the barrel as it is stiffer, and faster rate of twist stabilizes bullet better. So really, accuracy is a function of many factors, some are: barrel thickness, rate of twist and barrel length. In a similar gun, with a short and long barrel, both "hunter thin", with same slow(er) rate of twist, the longer barrel will stabilize the bullet better as the longer barrel will allow more pressure to build and thus push the bullet faster, thus achieving flatter trajectory. Again, this is not really applicable to rimfire physics.
The rate of twist required to stabilize a bullet depends on the bullet, but having a tighter rate of twist than required to stabilize the bullet does not make the rifle more accurate. As for benchrest rifles, many rifles chambered for cartridges such as the 6PPC produce the absolute best accuracy, with slower rates of twist and lighter bullets.
All else being equal, a longer barrel allows for more velocity, and flatter trajectory, but it doesn't make the gun more accurate.
easyrider604
CGN Ultra frequent flyer
- Location
- Greater Vancouver, BC
With the CZ 452/455 rifles, we are splitting hairs when talking accuracy differences between the models. My Style and Varmint shoot the same way.
But if I were to do it over again, I'd get two 16' barrel Americans.
I've read that they are the most accurate of all the 452s and without loss of velocity to boot, due to the 16 inch barrel. Actual tests have proven the 16 inch barrel sufficient to produce maximum velocity with most .22 ammo brands and types. The 16 incher is the most handy and lightest one of them all. What's not to like, and they look so cute.
But if I were to do it over again, I'd get two 16' barrel Americans.
I've read that they are the most accurate of all the 452s and without loss of velocity to boot, due to the 16 inch barrel. Actual tests have proven the 16 inch barrel sufficient to produce maximum velocity with most .22 ammo brands and types. The 16 incher is the most handy and lightest one of them all. What's not to like, and they look so cute.
I am with Stubblejumper here.
The only thing a longer barrel does (after about 16" in a 22LR) is give a longer possible sight radius for iron sights. It may also affect the weight fore/aft, but that is it. Once the bullet leaves the barrel, it doesn't care as long as the speed and rotation are consistent. Of course the muzzle crown is also very important as this leaves a final impression on the bullet as to it's accuracy.
