16-18 inch shorty rifles

Tikka T3 with a Tikka CTR barrel I bought off another member. Took it to the guys @CSTactical had them chop the barrel to 18” and Cerakoted it Sig Grey. Have a NX8 4-32 and ARC low rings on the way.
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Anyone mess around with a 11-12.5” 6.5G?



Been thinking of grabbing a 6.5G barreled action from brownells and dropping it in a chassis and SBA3 brace as a pistol.


Be a nice short and light medium range medium game rifle.

Slap a short K can on it like the YHM resonator K and you’d have a poor mans mini fix for quite a bit less.

Just wish more rifle companies were like Howa and were selling barreled action for cheap.

A tikka t3x barrel action in 6.5G would be awesome but it will never happen.
 
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Anyone mess around with a 11-12.5” 6.5G?



Been thinking of grabbing a 6.5G barreled action from brownells and dropping it in a chassis and SBA3 brace as a pistol.


Be a nice short and light medium range medium game rifle.

Slap a short K can on it like the YHM resonator K and you’d have a poor mans mini fix for quite a bit less.

Just wish more rifle companies were like Howa and were selling barreled action for cheap.

A tikka t3x barrel action in 6.5G would be awesome but it will never happen.
Sure do. Shot few whitetail and yotes with my foot long Grendel (11.5" actually). I have a short can and Vortex 1.5-8 configured as an SBR or pistol and shoot 120gr BT or factory 123Amax. Great compact hunting rig or a farm/ranch truck stick
 
Sure do. Shot few whitetail and yotes with my foot long Grendel (11.5" actually). I have a short can and Vortex 1.5-8 configured as an SBR or pistol and shoot 120gr BT or factory 123Amax. Great compact hunting rig or a farm/ranch truck stick


I assume it’s an Ar15 or is it a bolt gun?

Ruger makes an American in 6.5G but it’s a rifle and would have to be SBR’ed if I went below 16” but it take Ar15 mags
 
Which magazine are you feeding this from? I have one in 300 blk that I might consider converting to a more versatile caliber like 6mm ARC. Also, who is spinning barrels for the CZ527?

7.62x39/6.5 Grendel magazines. It started life as a 7.62x39 carbine. I believe the magazine footprint for the .223/.300BO is different than the grendel/x39 based cartridges so you'd need to track down different bottom metal as well as a different bolt (.378 vs. .440).
 
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7.62x39/6.5 Grendel magazines. It started life as a 7.62x39 carbine. I believe the magazine footprint for the .223/.300BO is different than the grendel/x39 based cartridges so you'd need to track down different bottom metal as well as a different bolt (.378 vs. .440).
Yeah, I was looking and I could find bolts and magazines but may be more effort then it's worth. Probably just look at converting a Howa Mini action or wait and see if they release a full barreled action.
 
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20" 8 tw 243 savage. Zeroed at 275yds with 70gr blitzkings@3400, makes for a perfect yote calling rifle. Inside 340yds, you don't have to hold off fur. This target is at 100yds. The 107smk load is 2900fps. Its zero is 190yds, without changing 70gr zero, i use 190 as zero range with shooter. It makes it pretty handy if you are calling over creek flats or wanting to shoot steel. No rezero or knob change, corrections start after 190yds.
 
Haha!

I've been searching here and there on the idea but haven't really found much. What weight bullets will still work in that length barrel and what twist rate?

Everything, everything works.

Match the twist to the bullet and decide between energy/velocity/drop/drift etc.

For example, run a 147 6.5 and it will be slow and hit harder inside 300 to 400. Run a 130, wont hit as hard but it will go faster and have less drop and drift. Go to a 123 and more zippy as well.

But, there is a balance and a slower higher BC bullet can eventually beat at fast light bullet.

Just plug the bullets into a ballistic calculator and run simulatuons. For guesstimates, use 25 fps loss per inch. Can be a little more or less depends on the cartridge and powder and how short it starts getting. There are several experiments online where they start at 26 and cut 1 inch at a time down to 18".

A 7 SS running RL26 uses 60 grains but a 7mm rem mag uses 68 grains. The 7SS is more efficient and will burn its powder faster. Short fat cartridges in big calibers are better, IMO.
 
I found, with 6.5creed, that what I could run 140-147eldm accurately, performed better than what the lighter bullets could do accurately. It takes a big velocity increase with light bullets to make that .530-.540bc equal .697bc 147. I get 2730 with 147 in a 20"

Interesting. Was that with one barrel or with multiples? I settled on high 2700s with 140 Bergers when I set up a buddy's 20" 6.5 creed. Can't complain about that, really. I had a short 6.5 creed for a time, and it ran pretty much everything from 130 to 140 the same group size. It was before I started documenting stuff, was my first real precision rifle. I think the accuracy might be a barrel specific thing.

Either way, I don't think there is any significant difference once you really get out and shoot. There are lots of other things that are going to screw up a shot before a little velocity.
 
It shot the light bullets good and it would shoot them fast, but it didn't want to shoot them good and fast. I want to say that it was around 2800-2825fps at accurate node, faster and it went to shit. .540@2825 gets beat on pretty hard by .697@2730. Its not much different than 308. If you got a 24+" barrel, the new style palmas@2900+fps are great. But what do 308 shooters use in 16-18" barrels? Mainly 175+ gr bullets
 
also, it takes crazy velocity to make up lower bc in drift corrections. High bc/ lower speed is alot better in the wind than low bc/high speed. The wind is what will mess with you, drop is the easy part to figure.
 
The only time I took lower bc and higher speed over higher bc and slow velocity was in a mk12 mod0 556. I could run 77gr smk@2700 or 69tmk@2885. Sure, went from .377 to .345bc, but inside 650yds that 69tmk stomped the 77. If I was gonna be shooting farther than 700yds, different story, but if I planned to shoot farther, I'd grab a different rifle.