spbt vs. hpbt

[ballistictip]

what would be the performance difference between a spbt and a hpbt? and how much accuracy diff. between fb vs bt out to 300yd's, thanks!bt

 

[nastynatesfish]

depending what caliber your shooting you wouldnt see much, depends if your looking for same hole groups for money or prize or putting meat in the freezer.

 

[ballistictip]

its all about the fur and meat(; 243ai coyotes and deer/ antelope

 

[nastynatesfish]

id look at a sierra hotcore or a hornady interlock. i use both them now in a 308 for my dad and they do good.

 

[ole_270]

The boat tail won't make much difference in trajectory till quite a bit further than 300 yards. Some rifles prefer one over the other so you might want to try both.

 

[pahntr760]

Sierra regards their HP's as tougher. The Sierra 165 HPBT in a .308 is one Bad Azz! Out to 300, I don’t think you would see a difference enough to worry about. Just try em both and see which one shoots better.

 

[Mike21]

Sierra HPBT Matchkings get the nod for all my varmint rifles. They shoot lights out in everything I own, they hit hard, and they do not over-penetrate (even on groundhogs). Sierra always gets my money. IMO, they make a great bullet. For game larger than varmints, I'd use a HPBT Gameking.


But as stated above, if it's between a spbt and a hpbt out to 300 yards, you shouldn't notice too big of a difference. Try them both.

 

[Va243hntr]

One more vote for the Sierra line , shooting the spbt in my 270 and the hpbt in the 243 both rifles love um although the 243 loves the 70 gr speer TNT's also most of my shots are under 300 so I can't help with the distance thing and most would ask why a boat tail ? My rifles love um that is the only reason

 

[unloaded]

All else being equal go with the bt, they are easier to load.

 

[MGYSGT]

For accuracy to 300. The Flat Base bullets are the ticket. Just look at what the competitors at benchrest shoot. The Boattail is for longrange. But like others have said. Each rifle will tell you what it likes.

Tom

 

[ackleyman]

Mgysgt is right on the money! I made benchrest bullets for years. I played around with all kinds of designs both flat base and boat tail. MOST guns will shoot a flat base bullet better, and the practical use for a boat tail does not show out till way out there. Even in 300 benchrest competition, we still shot flat base bullets.

The reason for the flat base shooting better is the way in which the bullet enters the lands and exits the barrel, and the practical amount of bullet drag that is reduced by a boat tail is really very little.

Shooters have become number crunchers, without realizing that a tiny bit of velocity overcomes much BC, play with a trajectory program a little, you will be shocked.

A more practical use of a boat tail has come in the ease in getting the bullet started in the case neck during the bullet seating process.

Ogive on the front of the bullet is where the money is, along with the size of the Meplat(HP).

 

[ballistictip]

thanks guys! guess ill start using the flat base sierra's they have more of the weights i want in the prohunters also sometimes a little cheaper than the boat tails too boot(;