Long Range - Short Barrel -Caliber

[ja4wheel6]

Wanting to build a 18" barreled rifle. Light chassis.

Wanting to go 6.5mm. Wildcats are welcome. Initial thoughts are 7-6.5prc, or even 300-6.5prc. 280 sherman magnum.

Wanting to still touch 2950 fps with heavy for caliber bullets. Is there anything that will do this?

Thanks

 

[Jlowry809]

Give it a year and there will be a 6 or 6.5 backcountry that’s going to be exactly what you want.


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[MagnumHntr]

How far are you comfortable shooting at game?

 

[ja4wheel6]

How far are you comfortable shooting at game?

for the sake of this conversation, lets pretend I am the best shooter wind caller in history lol not true. But lets pretend we are comfortable shooting to the maximum distance a bullet will function. 1600fps!?!?

 

[MagnumHntr]

for the sake of this conversation, lets pretend I am the best shooter wind caller in history lol not true. But lets pretend we are comfortable shooting to the maximum distance a bullet will function. 1600fps!?!?

To keep it simple, 6UM is your answer.

 

[Brandon.miller.4]

I have a 25-7prc with an 18" barrel. It shoots 133g berger elite hunters at 3100 behind N570. You could a accomplish your goal with ease using a 6.5-7prc. 25s are cooler though

 

[Slick8]

Agreed with the above a hot 6 is a good starting place.

If 6.5 if your diameter of choice I'd look at the 6.5 SAUM or better yet the 6.5-7PRC.

I don't think the 6.5PRC case will get you there unless you neck down to a 6-6.5PRC.

All JMHO.

 

[Wrench]

I'd set your impact velo up to 1800 to avoid any disappointment.

99.9% of bullets will work well there.

 

[JRMiller]

I start off selecting which bullets are out and actually available regularly first and what their expansion velocity and BC is. Some expand down to 1600fps, but most are 1800 and some even higher. With that info use can use any of the free ballistic calculators to determine to what range they'll expand with that particular bullet at an estimated velocity.
Its all highly dependent on velocity and BC.

 

[MagnumHntr]

The smaller caliber you go the more effective you will be at spotting shots in a lightweight chassis. A lightweight chassis rifle "under 8lbs scoped" should have a max range around 6-700 yards to be able to spot you impacts at closer distances.

 

[Long Cut]

.243

Still legal in all States to hunt.
Recoil won’t be an issue.
Lightweight so you can spot impacts in a “lightweight” setup.
Factory ammo is widely available if you’re in a bind on a trip etc…
Still should be around 1,800 FPS out to 600 yards with 85-100gr bullets