Tikka T1x Barrel Length

Slug870

Slug870

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So in my search for T1x, I’ve noticed the 16” barrel is in stock in a few places, but no 20” barrel versions available. So that got me thinking and as such I would like to pose a couple questions to the resident subject matter experts (yes, I mean you Mr. Grauhanen):

1. Is there a noticeable difference in MV between the two barrel lengths?
2. Do folks see a noticeable difference in accuracy out to say 300m? (I ask as I intend to use the rifle in rim fire PRS

Thanks in advance for any insight.
 
Slug870 said:
So in my search for T1x, I’ve noticed the 16” barrel is in stock in a few places, but no 20” barrel versions available. So that got me thinking and as such I would like to pose a couple questions to the resident subject matter experts (yes, I mean you Mr. Grauhanen):

1. Is there a noticeable difference in MV between the two barrel lengths?
2. Do folks see a noticeable difference in accuracy out to say 300m? (I ask as I intend to use the rifle in rim fire PRS

Thanks in advance for any insight.
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No big difference to argue over. I personally wouldn't worry over 4". I have a 16" CZ 457 MTR and hitting 8" gong at my 280 yard shooting lane with easy AND nice a compact for my shooting needs. As for looks and overall balance between a 16" or 20" barrel with a 6-24x50mm scope mounted on top will be personal preference.

If you do a Google search on the question you ask, you will come up with a lot of info on this subject including forum discussions over at RFC and videos on Youtube.

I love my 16" 457 MTR

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I wouldn't expect any significant difference in MV between a 16 and 20 inch barrel. Regarding accuracy, as range increases, the most important factor for remains the ammo. The difficulty is that variations in muzzle velocity will cause quite a bit of difference in POI the further the distance shot. Even top tier match ammo has an ES of 20 - 30 fps.

According to calculations done by a long range rimfire shooter on RFC, at 200 yards one fps difference between one round and the next produces 1/10th of vertical spread, while at 300 yards that one fps difference means 7/16ths of an inch in vertical spread. Of course, if the target is large enough, it will matter less. Wind is still a big factor. At 300 yards a 10 mph cross wind results in a wind deflection of some 38.5" with standard velocity ammo, a little more with high velocity ammo.
 
I think the big difference will be muzzle volume, and balance. I have a 16" VQ barrel on my 10/22, much louder then my other 22's. Balance will definitely change too.

I vote 20" for an all rounder, but it all comes down to personal preference.
 
With the shorter barrel mv will be higher, my 16 inch cz mtr runs very fast, accurate though. Once the math is done you are good, probably save a few clicks and some drift. It boils down to consistency and balance, if you like the short barrel go for it. The tikka does have a replaceable barrel
 
scuba52 said:
With the shorter barrel mv will be higher, my 16 inch cz mtr runs very fast, accurate though. Once the math is done you are good, probably save a few clicks and some drift. It boils down to consistency and balance, if you like the short barrel go for it. The tikka does have a replaceable barrel
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The faster .22LR ammo will have more wind drift, not less.
 
The 22LR reaches maximum muzzle velocity at 16” of barrel length and starts to slow down between 16 and 20. I’m not a ballistics expert by any means I gathered this info from a few different long range rimfire websites out of the UK while trying to answer the same question about the Tikka T1x. Just for curiosity who has the 16” in stock as I have been looking for one for some time.

Cheers
 
Slowbalt said:
Am I the only one puzzled by this?
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No doubt many shooters make the intuitive assumption that the faster round must be the one least affected by wind drift. There is a Rimfire Wind Deflection Chart in the sticky for "Rimfire Ballistic charts" above. It shows the different rates of wind deflection for SV and HV ammo, among others. It is reproduced below:



The .22LR round is the only major powder burning ammunition that shows more wind deflection as MV increases.

For a few more details on this, see, for example h t t p ://team40x.com/wind/page8.html and h t t p ://www.gunsmoke.com/guns/1022/22drift_cross.html
 
It goes against everything we know about deflection. Longer flight time should show more drift. Can’t remember why but google is your friend
 
scuba52 said:
It goes against everything we know about deflection. Longer flight time should show more drift. Can’t remember why but google is your friend
Click to expand...

There are reasons for why it happens that way. See above in the previous post for non-hot links for more details. Just copy and paste. Google is not needed.;)
 
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