Bought a Howa 308 with the Bull Lightning Barrell and a 6x18 scope. It is sighted in for 500yds but seems to me it would be lobing them in at 500. Doesn't right on at 200 make more sense??
10 replies [Last post]
Tue, 2006-08-08 18:28
Tue, 2006-08-08 19:54#1
6 point, welcome to the forum
You will probably get more responses if you put this in the firearms section.
There are several variables that will determine the trajectory of a round. Powder charge and bullet weight being the primary. I would say, if you are shooting factory 165gr spitzers. You will want to sight it 1 1/2 to 2 inches high at 100 yds. This will give you a point blank range of about 280 yds.
Tue, 2006-08-08 21:05#2
I moved this thread to firearms. You'll get better response
Again, welcome to the forum.
Wed, 2006-08-09 04:32#3
Here's the link for you to check different 308 rounds for both short and long range
Pick you bullet andclick "ballistics on the left.
Wed, 2006-08-09 22:07#4
Re: Sighting 308
6 Point wrote:
Doesn't right on at 200 make more sense??
Yes if you don't intend to shoot beyond this range a 200 yard zero is fine. Most shots are less than a 100, so you may want to consider a 100/150 yard zero.
You can also use a scope like a burris with a ballistic plex reticle. With a ranging reticle zeroed for your ammo and cartridge, it is possible to easily figure out vital zone hold over, assuming you know the shot distance. This elimantes the holdover guessing, since you have a "multizero" reticle.
Wed, 2006-08-09 22:36#5
Thanks for the replys, guys!! About the scope, it came with a Simmons 6x18, but haven't figured out the settings on the big end yet. Hoping to find a book to explain the settings
Thu, 2006-08-10 03:13#6
The ajustments you refer to are Parallax Adjustments. Here's a link for a good explanation and pics.
Thu, 2006-08-10 19:59#7
Your right about lobbing with a 500yd zero. That would be true for any cartridge. The thing to remember is the size of the "kill zone". I relate everything to deer and sight all my rifles in the same. There's about 16" of chest on a deer, give or take. Of that about 8" is a really vital zone. That means that whatever distence your shooting at, you've got an 8" target. The best way to make the best shot is to keep the bullet in that 8" from the muzzle to the target. With that said, I sight all my rifles in to max point blank range. You'll find most will come in somewhere between about 265yds to just over 300yds, yes even the fire breathing magnums!
The best way to determine what your max point blank range is is shooting at known ranges. Always hold the sights dead on and pay attention to where your groups are hitting. Without a cronograph and ballistic computer it's a bit tuffer but you can get very close to staying in the 8" zone. My son took over my last 308 a number of years ago so I don't recall what the 100yd sighting was with the 165gr bullet, the only bullet I ever hunted with in it. I'm thinking about 2 1/2 to 3" high at 100yds. Sight in there then move a target to 250yds then 275yds and watch for groups to fall 4" below line of sight.
Sat, 2006-08-19 08:47#8
Thanks for the replys, guys, greatly appreciated. Resited for 200. Decided to leve big end at 175. It is now 2 1/2 high at 100 and right on in 3 shot silver dollar group at 200. Now bring on the muleys
Sat, 2006-09-16 18:44#9
Shot whole box today and the final 4 shots were 50 cent piece group at 200 am really anxious for season to start.