Any LONG-RANGE shooters here???

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Master Carper

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The shortest barrel shown is 16 1/2"...

Depending on case size, caliber and efficiency, more often than not, a SHORTER barrel IS MORE ACCURATE than a longer barrel. Reason being is that there is less whip and vibration from the shorter barrel and the barrel harmonics are totally different between something like, say a 14" Contender pistol barrel vs. that of a 24" rifle barrel, even if both are chambered for the same cartridge...

I use to shoot Super 14" Contender handguns all the time, before arthritis took its toll on my hands, and shooting 1/2" or less groups at 100 yds. was quite easy to do. The 30-30 and 7mm T/CU were two of my favorite cartridges and two of the most consistently accurate from those 14" pistol barrels...

I'm not saying that the longer barrels are not accurate, because they are and can be superbly accurate...

Look at the efficiency of the 308 Winchester. Put it in a heavy barreled 18" bolt action rifle and a 26" bolt action rifle. For shooting groups at 100 and 200 yds., chances are, the shorter barrel will have the accuracy advantage over the longer barreled rifle. This is one reason why so many S.W.A.T. departments and other Law Enforcement agencies have gone to the shorter barrels...

This could get to be a real lengthy topic (no pun intended), so I'm gonna cut it short (again, no pun intended)....
 

Master Carper

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Finally got this rig finished...
i193.photobucket.com_albums_z132_HonkerHunter_photos_6_5X444_20Improved_066_zps6ee67e3e.jpg



i193.photobucket.com_albums_z132_HonkerHunter_photos_6_5X444_20Improved_059_zpse816e59a.jpg



i193.photobucket.com_albums_z132_HonkerHunter_photos_6_5X444_20Improved_003_zps2eed5e63.jpg



This rifle is chambered in the 6.5X444 Improved. New 444 Marlin brass is necked down to 6.5, fireformed and then the finished round...
i193.photobucket.com_albums_z132_HonkerHunter_photos_6_5X444_20Improved_097_zps09e15102.jpg
 
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The shortest barrel shown is 16 1/2"...

Depending on case size, caliber and efficiency, more often than not, a SHORTER barrel IS MORE ACCURATE than a longer barrel. Reason being is that there is less whip and vibration from the shorter barrel and the barrel harmonics are totally different between something like, say a 14" Contender pistol barrel vs. that of a 24" rifle barrel, even if both are chambered for the same cartridge...

.

Your observation has been proven many times.
This is the reason many have reloaded, to get the optimum combination of gun, and cartridge.

Company's have provided tools to over come the harmonics and whip. The Brake system by Winchester, and used by Browning (same company now) comes to mind, and Limb Saver offers a cuff to ride on the barrel to help as well.

I can see where reloading for the particular gun may improve it even more?
 

fluxed

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Looks good David. The rimmed cartridge is a neat idea. How much powder does it hold? Is it near a 6.5x284? Hows barrel life?

Barrel length is indeed best for accuracy when shorter rather than longer because of whip. The long barrels are so popular because the need for velocity. Those long shots with high BC bullets need velocity. Keeping a 308 Win supersonic at 1000 yards is hard to do with a shorter tube.
 
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Finally got this rig finished...
i193.photobucket.com_albums_z132_HonkerHunter_photos_6_5X444_20Improved_066_zps6ee67e3e.jpg



i193.photobucket.com_albums_z132_HonkerHunter_photos_6_5X444_20Improved_059_zpse816e59a.jpg



i193.photobucket.com_albums_z132_HonkerHunter_photos_6_5X444_20Improved_003_zps2eed5e63.jpg



This rifle is chambered in the 6.5X444 Improved. New 444 Marlin brass is necked down to 6.5, fireformed and then the finished round...
i193.photobucket.com_albums_z132_HonkerHunter_photos_6_5X444_20Improved_097_zps09e15102.jpg

What velocity you getting out of the 140 with this? How does it do in a magazine? I realize everything you do is single shot though.

What mods do you have to do to the remington bolt to make that work?
 

Master Carper

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Looks good David. The rimmed cartridge is a neat idea. How much powder does it hold? Is it near a 6.5x284? Hows barrel life?

Thank you!

Not close to a 6.5-284 and barrel life should be several thousand rounds...

Here is a picture showing a comparison between a couple of other 6.5 caliber cartridges - 260 Remington, 6.5X444 Improved and 6.5-06...
i193.photobucket.com_albums_z132_HonkerHunter_photos_6_5X444_20Improved_088_zpsa4a98d51.jpg



Using small grain stick powder, measured the the bottom of each case neck, here is the powder capacity of each round...

260 Remington - 46.0 gr...

6.5X444 Improved - 53.0 gr...

6.5-06 - 58.0 gr...


.................................................................................................................................................................................


h4everything,

quite the contrary, I do far more "repeaters" than what I do single shots...

I have probably built over 60 rifles or barrels chambered for the 6.5X444 Improved cartridge and other than fire-forming a couple of rounds to check the chambers dimensions, I cannot give you an honest answer as to the velocity potential of this cartridge. I have owned and shot the 6mmX444 Improved, 257X444 Improved, 7mmX444 Improved, 308X444 Improved, 338X444 Improved and 358X444 Improved but, never the 6.5. It's just not a caliber I care much about. Nothing wrong with it, I just prefer other calibers...

To modify a Remington bolt for the rimmed 444 Marlin case, here is what I do:

1- Remington's extractor is removed...

2- The top rim is machined off the bolt...

3- Bolt face is opened...

4- Bolt face is trued...

5- A steel bushing is silver soldered to the inside edge of the bolt, a few thousandths larger than what the 444 Marlin rim is...

6- The bolt is machined and a Sako style extractor is installed...

I have built several Remington 700 rifles in other cartridges like the 30-30, 7X30 Waters, 219 Donaldson Wasp, etc....
 

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