Marlin Firearms Forum banner

Bullet Trajectory - 50 yds v. 100 yds

3 reading
19K views 23 replies 13 participants last post by  sgt_zim  
#1 ·
Would a bullet continue to rise at 100 yards or would the trajectory be level/falling when compared to 50 yards?

Some details:

Marlin 1895 22" barrel
Factory Hornady Leverevolution - 325 grain
Scope roughly 2.5" above rifle bore

I know a lot more goes into this (wind, temp,etc.), but I am sighted in 3" high at 50 yards with the above setup. I couldn't test to 100 yards. What should my expectations be in terms of impact at 100 and 200 yards?

Thanks for any help
 
#5 ·
Inside 300 yards, other than shooting in a gale-forced wind, the environment has very little effect on any but the lightest bullets.

for a 100 yd zero with that cartridge, you'd need to be 1" high at 50 yards. For a 150 yard zero (I recommend this), you'll want to be about 1.5" high at 50 yards. That'll get you out to 175 yds without having to adjust for holdover on deer or hogs. At 200 yards, you'd probably want to aim just below the spine.
 
#6 ·
#8 ·
if you play around with their ballistic calculator, only way to get that 3" at 100 yards and a 200 yd zero is with a MV of about 2500 fps. that's a little north of the published velocity for LeveRevolution.

at 2050 fps and a 150 yd zero, he'll want to be a little over 2" high at 100, and about 1.5" high at 50 yards.

for a 200 yd zero at 2050 fps, he'll be about 5" high at 100 yards.

If he has a plain 1895, that's a 22" barrel. If he has an 1895G or GBL, that's an 18.5" barrel.
 
#9 ·
Also, considering the looping trajectory of even the FTX bullets, you need to get a better measurement than "about" 2.5" above the bore. If you don't have calipers, lay your rifle on its side, action open. Take a tape measure and measure from the center of the breech to the center of the scope (assuming you haven't done that). For 2.5", I think you'd probably need to be on tall rings with a 50mm scope.

I'd expect you to be about 1.5" above the bore with a 40mm objective on your scope.
 
#13 ·
If you can give us some more information, such as like where you'd like to be at 100 yards, or the maximum range you'll be shooting, we can give you something a lot more useful. For example, with your updated info:

1" high at 50 yards ... 1.77" high at 100 yards ... 0.40" low at 150 yards ... 5.93" low at 200 yards (my personal choice)

1.5" high at 50 yards ... 2.77" high at 100 yards ... 1.10" high at 150 yards ... 3.93" low at 200 yards

1.75" high at 50 yards ... 3.27" high at 100 yards ... 1.85" high at 150 yards ... 2.93" low at 200 yards (max range for +/- 3")

etc...
 
#18 ·
Any more, I only reload the FTX for my brother-in-law's H&R for "primitive" season in Louisiana. I shoot nothing but lead alloy now, MBC 405 gr for practice, and BTB 425 and 525 gr for hunting. I get extraordinary precision (for a lever gun shooting lead) out of the BTB, and still pretty good precision out of the MBCs

All groups are with XS Ghost ring at 50 yards
MBC 405 gr


BTB 425 gr


BTB 525 gr
 
  • Like
Reactions: GITU1 and rlm1
#24 ·
Exactly this.

Mythbusters actually tested this a number of years ago, though they did it with a 45 ACP and a penny (I think). Seems like they didn't hit the ground at the *exact* same time, but certainly within a couple thousandths of a second, which is near enough in my book considering the mechanical uncertainty of releasing the penny and firing the pistol at the same time. And even if the trigger were pulled at the exact same time the penny were released, there is the time required for the hammer to fall, for the firing pin to strike the primer, the primer to explode, the gun powder to ignite, and the bullet to be discharged from the barrel.