6 creedmoor 87 vmax??

[Phil]

Anyone ever shoot the 87 or 75 Vmax through thier 6 creedmoor?????

Powder/velocity/accuracy????

 

[Phil]

Anyone?

 

[Hoot]

Impeccable timing. I am looking at the last comfortable shooting weather weekend of this year up here in the great white north and of course, I have a range day already planned. Having finally gotten my hands on a bottle of Alliant TS 15.5, one of my experiments was going to be running a ladder with 87 Vmax bullets in my 6 Creedmoor RPR. I'll report my results here when I finish. I usually run my bullets plated but can go in bareback if that helps you more.

Hoot

 

[Phil]

Impeccable timing. I am looking at the last comfortable shooting weather weekend of this year up here in the great white north and of course, I have a range day already planned. Having finally gotten my hands on a bottle of Alliant TS 15.5, one of my experiments was going to be running a ladder with 87 Vmax bullets in my 6 Creedmoor RPR. I'll report my results here when I finish. I usually run my bullets plated but can go in bareback if that helps you more.

Hoot

Hoot,

Nekkid or coated, whatever you prefer, I`m just looking for ballpark numbers.

Phil.

 

[Hoot]

All set for tomorrow (Friday). Both TS-15.5 at Jam+5, -10, -20 an -30 jump. H4350 at Jam+5 and -20 jump.
Ran out of prepped brass, so the H4350 rungs are only 3-shots each. The TS-15.5 are 5-shot rungs.

Hoot

 

[JSH]

Factory Hornady 87 V max ammo. I have not run any for numbers yet.
I wanted LRP brass as I have plenty of LRP’s on hand. Got a heck of a deal on factory ammo, I couldn’t buy the brass and bullets for the same $.

It shoots well in the two examples of 6CM I have.

 

[Hoot]

I managed to get three sessions in since my last post, slowly tightening the ladder. My 26" 1:8 aftermarket barrel on my RPR liked 41.6gr of TS15.5 with the bullet .020 off the lands. The produced a .209 3-shot group at 100 yds. I got even better results with 41.7gr H4350 on the lower node and 44.5gr on the upper. Both also at .020 off the lands. The 41.7 load produced a .142 3-shot group and the 44.5 yielded a .116 group. I burned through around 50 shots refining that down and had to limit my last attempts to 3-shot volleys because I ran out of bullets. This is probably the last comfortable weather hurrah of this season. FWIW, I doubt that I've put more than 100 rounds through this new barrel, so it may improve with additional break-in, when comfortable weather returns in April. I was using 3-F Peterson SRP brass that has been annealed after each loading and CCI450 primers. Hopefully, the groundhog doesn't see his shadow next February.

Hoot

 

[urbanrifleman]

6 Creedmoor chamber has something like .180" freebore too.

Very good information. Thank you.

 

[G Love]

Varget and I can't remember the charge, but you should be somewhere around the mid 3300's at 24". It's a crusher. I think factory is running around 3150 if my memory serves.

 

[moorepower]

I managed to get three sessions in since my last post, slowly tightening the ladder. My 26" 1:8 aftermarket barrel on my RPR liked 41.6gr of TS15.5 with the bullet .020 off the lands. The produced a .209 3-shot group at 100 yds. I got even better results with 41.7gr H4350 on the lower node and 44.5gr on the upper. Both also at .020 off the lands. The 41.7 load produced a .142 3-shot group and the 44.5 yielded a .116 group. I burned through around 50 shots refining that down and had to limit my last attempts to 3-shot volleys because I ran out of bullets. This is probably the last comfortable weather hurrah of this season. FWIW, I doubt that I've put more than 100 rounds through this new barrel, so it may improve with additional break-in, when comfortable weather returns in April. I was using 3-F Peterson SRP brass that has been annealed after each loading and CCI450 primers. Hopefully, the groundhog doesn't see his shadow next February.

Hoot

You must have missed the post's that Hornady bullets are junk.

 

[Hoot]

I know I know. Look at these terrible 108 ELD-M groups from yesterday with three different powders.

Hoot

 

[Capt. Oblivious]

I also hate that 108gr ELD...