270 trajectory
 

should i expect a 110 gr bullet to shoot flatter than a 130 gr bullet? some factory stuff i tried did not. i want to try reloading the sierra 110 bt. i have a tikka t3 that i just picked up after being lapped. i have plenty of imr4831,reloader 22 and some more that i cant remember right now. any sugestions would be appreciated. thank you.

RE: 270 trajectory
 

Lemme run some data through a ballistics program and I'll get back to this. Be helpful to know the bullets used and the velocity for each.
What do the ballistics tables at the back of your reloading manuals tell you?
Pete

RE: 270 trajectory
 

The lighter bullet will shoot flatter if it is going faster! But there is a point where the slower bullet will pass the faster one, since the faster one sheds velocity quicker too. So it depends on how far you are talking about.....

RE: 270 trajectory
 

Lets just say That compition Shooter use Heavy Bullets to shoot long Ranges. Less wing drift and the site in to the flatest posible way. I
would Go with the 130 gr.

RE: 270 trajectory
 

How did you determine which load had the flatter trajectory?Did you just fire both loads at a given distance and assume that the one with the higher point of impact was shooting flatter?Or did you zero both loads at the same distance and then shoot them at longer distances to see which dropped more at those distances.

RE: 270 trajectory
 

the 110 gr bullet printed 1.5 " higher than the 130 gr bullet so i added 1.5" to ae. measurement.Thank you sir

RE: 270 trajectory
 

http://www.federalpremium.com/products/compare/rifle_compare.aspx

Compare the 110gr Barnes and the 130gr Nosler Partition, they are both flat based bullets...This should give you a good idea...

RE: 270 trajectory
 

NCHAWKEYE, thanks again sir great info

RE: 270 trajectory
 

:eek:?????

RE: 270 trajectory
 

Hey Stubble - my thoughts exactly.
Dead on - Your logic on bullet trajectory is dead wrong.
If you were to plot your 2 bullets you would probably see that the lighter bullet crosses the line of sight at a farther distance from the bore than the heavier bullet and is continuing to climb at 100 yds.
(ie. with a 200 yd zero from the Hornady manual, a 100 gr .277" traveling at 3600 fps will be .40" high at 100 yds whereas a 130 gr bullet at 2900 fps will be about 1.14" high.) This is considering a 1.5" high line of sight above the bore.

RE: 270 trajectory
 

BRONCO, thank you sir for straiting me out on trajectory. when i find a load my rifle likes at 100 yds I go out and shoot it at 2,3 and 400 yds. If i like what i see i write the info on my scope cap and hunt with it that year. I made some wrong assumptions bullet to bullet and again thanks.

RE: 270 trajectory
 

Taking it all in and cant weight til i can do some more handloading . Thank you sir!!!

RE: 270 trajectory
 

The 140gr seems to be the best or flatest .277 bullet for longer distance 300-500 yards. What are you shooting just target/steel. You will need some momentum once you get there as well for shilo's. whiffle ball/ base ball what do you think?

RE: 270 trajectory
 

Dead On: Just a note - remember that you are not going to get some of the velocities posted here using the powders that you have on hand. Max for the 130 with powders like 4831 and R22 is about 2900 fps. The 110s will run max about 3100fps. For the 110 grain bullet the difference in drop at 400 yards between 3100 fps and 3600 fps (100 yard zero) is 10 inches.
Pete

RE: 270 trajectory
 

Pete D thank you Sir. all this info is very helpful. any one else?