Reloading 75 grain a-max for 223 (ar mag)

[MrMister12]

Hi, I picked up some 75 grain a-max a while back, and I am wanting to load them for my xcr-l. The problem is they are so dang long to go with the hornady info I have (2.39). I'm fairly new to reloading, but it just seems like I might have major pressure issues if I load to fit the mag (2.31 max). Has anyone loaded these for ar style mag/firearm?

Any info/suggestions would be great!

Thanks
Matt

[Smokinyotes]

I had a xcr-l. I never hand loaded for it but I tried Hornady 75gr btsp. They did not shoot as good as the Nosler custom.

[dogslayer403]

Id look at the 73g eld-m if i were you they can be safely loaded to fit magazines the 75g amax are cautioned not to