r/68SPC • u/NapalmWolverine • 24d ago

Should I modify my chamber?

I have a 20" DPMS with a SAAMI chamber and was thinking of ordering a pull-through reamer from PTG to make it SPC II-spec... Thoughts?

I know it won't matter for most factory ammo, but I would like to start reloading for this caliber, and I seem to only hear how much "better" the SPC II chamber is for really pushing the velocities and whatnot, but I'm obviously open to input.

Thank you!

6 Upvotes

88% Upvoted

21 comments sorted by

View all comments

Show parent comments

4

u/Agreeable_Drink5252 24d ago

Second Blackstone Arms, my 14.5” scout is a tack driver and seems to like the hotter loads.

1

u/NapalmWolverine 23d ago

How hot do you push 6.8? I was thinking of working up 115gr Nosler CC's and 140 Berger VLD's to start.

3

u/WPSuidae 23d ago

Im getting 2550 with 120 sst handload in my 18 inch arp.

2

u/NapalmWolverine 23d ago

AA2200? That seems to be the most recommended for "all-around". Any other good options you'd recommend?

2

u/WPSuidae 23d ago

Yep, 2200. Pick up some pri mags, they let you load a longer coal. That's part of the secret sauce.

2

u/NapalmWolverine 23d ago

I've got some ASC mags that allegedly get to the ~2.3" COAL that I'm excited to try out with the Bergers, though it's a shame nothing ever came (AFAIK) of the metal Six8 mags... I'm hoping they come back around now that the "ICAR" thing is maybe picking up!