BT VS STRAIGHT out to 600 ?

[1-trident-1]

the BT contacts less of the neck than does straight tail. I know diameter should equal engagement. this is cut in half by a BT. jump is about 20. will accuracy suffer with less contact with the neck with BT bullets out to 600? this is for .308. - thanks

 

[grizzly416]

I've heard that flat base is better till 300 but after that bt takes over
But guns can do the opposite so like anything u got to check for yourself

 

[Alpheus]

The better BC of the boat-tail will make it perform better at longer ranges. As for precision, try 'em. Every rifle is different. I'm guessing you have a factory rifle based on the jump? I'd rather seat them deeper for more bearing surface inside the neck. What bullets and OAL?

 

[1-trident-1]

the bullets I'm trying to decide on, 147 gr. OAL limited by magazine. by my estimate BT will only contact .150 of the neck

 

[Alpheus]

147gr is a short bullet, why are you seating them out at magazine length? What is your OAL in inches?

 

[1-trident-1]

147gr is a short bullet, why are you seating them out at magazine length? What is your OAL in inches?

OAL 2.85 , trying to keep the jump as close to 20 as I can.

 

[Ganderite]

Remington have a deep throat (lawyer designed it).

A 147 FMJ is not a precision bullet. Not made for accuracy. So jump will not matter. It will always be mediocre, at best.

Any HP or softpoint bullet will outperform it.

In a quality barrel, a BT will work ok. If less than perfect barrel, a FB bullet is better.

For cheap but accurate bullets, I use Hornady 150 gr and 165 gr.

 

[1-trident-1]

thanks for the info guys, you saved me time and money.