smith and wesson m&p 15 sport 5.56

[sniper81]

buddy of mine just got one of these rifles looks nice has a 1/8 twist was wondering what grain of ammo to start with he is just going to punch paper with it and hunt coyotes once in awhile i recommended 62gr fmj but would like some of your guys opinion

 

[GunKnowledge]

Re: smith and wesson m&p 15 sport 5.56

Stay under ~75/77 grains, 62 is a good choice.

 

[sniper81]

Re: smith and wesson m&p 15 sport 5.56

what about pmc 55gr fmj seems alot of ar shooters are using this and are supposed to be clean and accurate

 

[Magstang1]

Re: smith and wesson m&p 15 sport 5.56

That rifle should eat 55g PMC like candy.

 

[Barikade]

Re: smith and wesson m&p 15 sport 5.56

You could probably stabilize 80's, def 77 and under easy. Ammo for the AR is all about how much you wanna spend or if you reload.

 

[samnev]

Re: smith and wesson m&p 15 sport 5.56

With a 1:8 twist I'd stay with 62 grain or heavier.

 

[Rovieairto]

Re: smith and wesson m&p 15 sport 5.56

77 Sierra matchkings are the bullets to shoot in a 1:8 if you can keep the velocity up.
The 69 SMK, or 68 HPBT (Hornady) will likely give you the best overall accuracy.
55's should shoot as good as 55's do.

Most 62's are not good target bullets.

 

[GreggNY]

Re: smith and wesson m&p 15 sport 5.56

I'll second this. The black hills 69 and 77gr ammo (not reloading yet) shot great out of my larue 1 in 8" upper. I'm pretty sure these use the sierra match kings. The remanufactured rounds beat out all of the more expensive ammo I tried.

 

[Rovieairto]

Re: smith and wesson m&p 15 sport 5.56

Yes, they use the Sierra matchking bullets.
Black hills re-manufactured ammo is what I'd recommend to the non-reloader.
69's need 1:9 or faster
77's need 1:8 or faster

 

[jack simpson]

Re: smith and wesson m&p 15 sport 5.56

I have one. used 55 grain Sierra blitz kings. Shot sub moa.