It says it is calibrated to 55gr bullets, what differences do you see shooting heavy bullets/ what adjustments do you make
1169605
Correct, this scope is dialed in for .55 gr bullets at 3240 fps. If you want to shoot heavier bullets accurately I would suggest the M-223 with BDC 600 reticle. This will allow you to use Nikon's Spot On Ballistic Program to dial in your rifle, scope and ammo choice.
1169606
Yes, you will have to sight in differently for the heavier bullets. If your shooting 77 gr or heavier in the 223 out of a 1 in 8 twist barrel (and you should be if you are wanting to hit anything beyone 300 yards) you will have to sight in and make click adjustments. The 55 gr scale will get you close they make a quick click adjusment from there. It has a scale that you can use just like a normal scope. The optics on the Nikon are excellent and its a very good scope for the money.
1169607
I have only shot the PMC fmj bt at 55 grs . My AR has a 1/9 twist . I have the sf model with the turret adj bdc ... not the one with the little circles for Bullet drop . A great scope . But I did put in an AR Gold trigger assy . Same as Jerrry Mickelek uses .
1169608
I have only used 55grain fmbt so I can't say what you would do with heavier bullets. I think it's safe to say you would see slower bullet speeds hence more drop at any given yardage.
801278
It has load data for the 223, which is the same difference. I use it for my 223/5.56 loads. This is one of the most commonly loaded calibers, so any loading manual will have data on it.
1992405
I suggest using 0.20g bbs. They give you the highest fps while also giving the best accuracy.
920822
What caliber are you shooting? Don't know the FPS of my pellets, but I shoot a .177 Benjamin Marauder PCP Air rifle (stock, not enhanced) at my littls spinner target. It's about 25 yds away and I'm shooting JSB Diabolo EXACT .177 Caliber Air Gun Pellets - 8.44 gr pellets. These pellts spin and reset the target just fine. Now, I also have the larger spinning target, .made for 22 cal. These .177 pellets won't spin those bigger paddles. And my .22 and .25 Marauders spin the large target paddle and spin the small target paddles like crazy, but I don't know how long the little spinning paddles would last with the bigger pellets striking them - so I only shoot my .177 at the smaller spinner. But like I said, my .177 can spin the small paddles all day long. Hope this helps. Bobby
587773
I bought it as a gift for my grandson. I played around with it before I gave it to him. It only takes .177 Cal pellets. It depends on what you are hunting. .177 pellets may kill small rodents and birds at fairly close range. Crows, rats, squirrels, maybe small raccoons and possum. The most deadly and accurate are the pellets that are hollow pointed. The gun will jam if you load some pointed pellets in the magazine. If you are hunting something bigger, you need a gun (preferably, a rifle) that will shoot .22 cal. pellets. You need high velocity to get a clean kill on something larger than rodents. P-25 is only about 420 fps with a fresh Co2 cartridge. I bought it as a gift for my grandson. I played around with it before I gave it to him. It only takes .177 Cal pellets. It depends on what you are hunting. .177 pellets may kill small rodents and birds at fairly close range. Crows, rats, squirrels, maybe small raccoons and possum. The most deadly and accurate are the pellets that are hollow pointed. The gun will jam if you load some pointed pellets in the magazine. If you are hunting something bigger, you need a gun (preferably, a rifle) that will shoot .22 cal. pellets. You need high velocity to get a clean kill on something larger than... » Read More I bought it as a gift for my grandson. I played around with it before I gave it to him. It only takes .177 Cal pellets. It depends on what you are hunting. .177 pellets may kill small rodents and birds at fairly close range. Crows, rats, squirrels, maybe small raccoons and possum. The most deadly and accurate are the pellets that are hollow pointed. The gun will jam if you load some pointed pellets in the magazine. If you are hunting something bigger, you need a gun (preferably, a rifle) that will shoot .22 cal. pellets. You need high velocity to get a clean kill on something larger than rodents. P-25 is only about 420 fps with a fresh Co2 cartridge. « Show Less
576056
It's an import from China, I loaded 300 precision 22-250 cartridges last winter, (nearly sold gun because it seemed wore out due to very poor accuracy), turns out scale fluctuated .8 grain. I trickle all my precision loads and thought it was odd that my powder measure was like that. I used my RCBS scale to check after disassembling some of the loads. I have a lot of practice rounds now. I can't think of a good use for the Hornady scale now.
1243211
Well the BDC on this scope is set for the default m185 Full metal jacket 55gr Nato round. Yes barrel length will make a difference. You can either reload your own ammo and develop a load that works with your barrel to make the proper velocity or you can enter your ammo specs in on Nikons site and it will give you range adjustments for the dots on the BDC600. I recommend loading your own to stay true to the distant marks as much as possible. I load Hornady 55gr and ran a chronograph shooting different loads till I found the right mix. I have 20" 1/7 BCM match for an upper. Also get the mount for this scope makes mounting a breeze. Well the BDC on this scope is set for the default m185 Full metal jacket 55gr Nato round. Yes barrel length will make a difference. You can either reload your own ammo and develop a load that works with your barrel to make the proper velocity or you can enter your ammo specs in on Nikons site and it will give you range adjustments for the dots on the BDC600. I recommend loading your own to stay true to the distant marks as much as possible. I load Hornady 55gr and ran a chronograph shooting different loads till I found the right mix. I have 20" 1/7 BCM match for an upper. Also get the... » Read More Well the BDC on this scope is set for the default m185 Full metal jacket 55gr Nato round. Yes barrel length will make a difference. You can either reload your own ammo and develop a load that works with your barrel to make the proper velocity or you can enter your ammo specs in on Nikons site and it will give you range adjustments for the dots on the BDC600. I recommend loading your own to stay true to the distant marks as much as possible. I load Hornady 55gr and ran a chronograph shooting different loads till I found the right mix. I have 20" 1/7 BCM match for an upper. Also get the mount for this scope makes mounting a breeze. « Show Less
2085491
Sorry. Hubby says it goes up to 150 grain only, nothing for 155 grain cast bullet.
1142362
I shot 22 LR and they slightly bulged the target plates. AK 47 is much more powerful than a 22 and it will damage the target plates.
1243210
I run it on a 24 in bull barrel and the Nikon website (http://spoton.nikonsportoptics.com/spoton/spoton.html#:4) I believe bases the ballistic coefficient on a 24 inch barrel and when I print up some of the bdc chart for my given ammo I'm shooting, it's pretty accurate. I was going to put it originally on my 18" barrel model and was reading that the bdc's would be pretty close. What was recommended was get the bdc print out, and then head to the range and you can see the slight differences on each circle and them you can adjust accordingly. I know that sounds like a pain, but the guy that was going over it, said that each bdc circle would be off say 5 or so yards so say if one would be 200, it would actually be 193 and so on. The bottom line is even with a 24 in barrel, I still confirm the bdc circles on each different round I fire down range. The scope is great and I just bought one for my father in law and he is hooked and a big fan. Hope that helps
1695563
Mine did need a small amount of calibration, my elevation line was too high. Fire at a fixed target from a padded flat surface. Mark your targets and check your calibration accordingly.
60162
If I remember correctly the 17lb spring is the same as the factory, or very close. The other spring weights while affecting recoil I think are really to match the bullet weight of the cartridge, i.e., the heavier the bullet the stronger the spring. I have the 17lb spring and use a cartridge with a 115gm bullet and it works fine so far.
1243212
The drop in the reticle is based off the trajectory of a 55 grain polymer tipped bullet. They list the muzzle velocity they based their ballistics on. Check your muzzle velocity and adjust accordingly.
620469
That requires a long and involved answer. There are some good videos on the internet you might want to look at. Important items: The rifle needs to be very secure and steady. I locked mine in a "gun vise.". I also found that I needed to fire about 100 pellets through the rifle before it settled down enough to get a consistent pattern. I also discovered (1) the scope rings that came with the scope were junk. I purchased a good set and it made a big difference. (2) I had to shim the scope to get the height correct - I simple ran out of adjustment. As I recall I had to shim it on the lower part of the rear ring. It can take some time to get the scope adjusted (quite a few pellets and targets) but you can get it right on. You'll be very happy with the way is shoots once you get it done.
1535404
I have no idea.I got it sighted in at 50 in 3 shots with a lower power 55 grain handload and put it in the safe.Around here I have no chance of shooting beyond 100-150.
1286452
Inside 400 yards there is not much difference at all. I have not shot further than that with this scope. I use federal 55 gr as my target ammo and 62 gr steel core for preferred and the zero at 100 and 200 yrds is the same
1820590
I can't tell if you are serious or not. I wouldn't use it on a anything but a .223/5.56. The scope is designed for AR use and has bullet drop compensation dials are designed for this caliber in a 55gr. bullet weight. The bullet drop reticles would be very inaccurate. Although other dials can be ordered for additional cost I don't think you'll find anything in this model series for such a huge caliber. If I were spending that much money for ammo I think I would be careful of getting a scope that will work correctly with that caliber. If you don't hit the target the ammo doesn't do much good and you aren't likely to get anywhere near 1000 yard accuracy, assuming you could even see the target with it. I can't tell if you are serious or not. I wouldn't use it on a anything but a .223/5.56. The scope is designed for AR use and has bullet drop compensation dials are designed for this caliber in a 55gr. bullet weight. The bullet drop reticles would be very inaccurate. Although other dials can be ordered for additional cost I don't think you'll find anything in this model series for such a huge caliber. If I were spending that much money for ammo I think I would be careful of getting a scope that will work correctly with that caliber. If you don't hit the target the ammo doesn't do much good... » Read More I can't tell if you are serious or not. I wouldn't use it on a anything but a .223/5.56. The scope is designed for AR use and has bullet drop compensation dials are designed for this caliber in a 55gr. bullet weight. The bullet drop reticles would be very inaccurate. Although other dials can be ordered for additional cost I don't think you'll find anything in this model series for such a huge caliber. If I were spending that much money for ammo I think I would be careful of getting a scope that will work correctly with that caliber. If you don't hit the target the ammo doesn't do much good and you aren't likely to get anywhere near 1000 yard accuracy, assuming you could even see the target with it. « Show Less