Resized 223 too short to trim?

[Rim Job]

So humor me for sec: now that I have my trimming somewhat sorted, I'm building up a load of Hornady 75gn BTHP with H335 starting at 22 gr. All the manuals that I have (Lyman and Speer) start with a case length of 1.750" and an OAL of 2.390". With the shorter case that I'm using (by 0.010", would I make the OAL 2.380" ?

Not finding much verified data on this bullet with this powder.

Edit: and I literally just now realize that this setup won't work in a standard AR15 mag (too long). Would have to be single shot every time. I swear I'm surprised I haven't blown myself up yet

2.260" vs 2.390" with the same bullet

Double edit: after stopping @ Shooters Supply in Westport to pick up some supplies (including the Hornady manual) I found my problem. I was using the 75 gr Amax bullet OAL (2.390)

 

[akma]

Your case length has nothing to do with the OAL. If you are going to single load on the AR push the bullet out .020"-.030" off the lands. Maybe more maybe less but it made a big difference for me.

 

[Finalygotabeltfed]

So humor me for sec: now that I have my trimming somewhat sorted, I'm building up a load of Hornady 75gn BTHP with H335 starting at 22 gr. All the manuals that I have (Lyman and Speer) start with a case length of 1.750" and an OAL of 2.390". With the shorter case that I'm using (by 0.010", would I make the OAL 2.380" ?

Not finding much verified data on this bullet with this powder.

Edit: and I literally just now realize that this setup won't work in a standard AR15 mag (too long). Would have to be single shot every time. I swear I'm surprised I haven't blown myself up yet

2.260" vs 2.390" with the same bullet

Double edit: after stopping @ Shooters Supply in Westport to pick up some supplies (including the Hornady manual) I found my problem. I was using the 75 gr Amax bullet OAL (2.390)

Seems fairly obvious that you don't really know what you're doing. Maybe take a class and get to the point of understanding some critical aspects of reloading before you injure yourself, someone else or destroy your gun/s or all three.

 

[Rim Job]

Seems fairly obvious that you don't really know what you're doing. Maybe take a class and get to the point of understanding some critical aspects of reloading before you injure yourself, someone else or destroy your gun/s or all three.

Actually, I took EddieCoyle's class back in February. I haven't had the chance to take the Precision Rifle Class yet.

 

[Hoon]

That powder is too fast for a 75gr bullet.

That's why you're not finding data.

Look into TAC, CFE223, Varget, IMR 4166, etc.

 

[Hoon]

I love the 75 BTHPs in ARs.

Seat to 2.250, max of 2.255 on 23.0 of Varget.

That's an excellent accuracy load in both my 16" guns.

 

[thormx538]

I always load my heavier bullets to 2.260" in 223.

I've been a fan of IMR4895 with 69gr Nosler Comp Customs lately in my ARP barrel.

H335 is too fast for 75gr, IMO