Latest activity

Hot Threads

Latest activity

 Posts Forum list
 

Filter

The evolution of the 300 Blackout - great day at the range with Blackarc Munitions and Hornady

pangris
12.5" Grendel vs 12.5" BO = both are now 110 gr @ ~2,400 FPS, same same with the new case tech.

The Grendel is my favorite of the group, but I'm hoping the 300 redeems itself out to say 150 yards with the new ammo.

Do believe replacing bolts like oil filters is wise regardless, every 2,000 - 5,000 rounds depending on what you're doing. The cost of the bolt is an afterthought vs the ammo and the cost of shooting beyond ammo.
Click to expand...

You need a Super Safe MP5

N_Turs
NiteQwill said:
If anyone has any questions or assistance with any MP5 super safety lowers, I'm happy to help. I've assisted in building many for some folks.View attachment 8762739
Click to expand...

On the ones you've messed with did you have to change the locking piece? I have an AP5K that is set up with a super safety and it runs great just read that roller bump can be an issue. Im not running it with a can now but plan on getting a huxwrks for it.
Click to expand...

Your PVA prefit experience

bohem
6brshooter said:
I can see that, my DA is usually 1500+ when I get to shoot. Can I ask thoughts on why watermark held better, more gyroscopic stability?
Click to expand...
I think it's due to the fact that the additional stability will keep it off the edge a little longer, it's overcompensating the magnus effects. We saw the same thing with 168 SMK's by speeding up the twist rate from 11.5 down to a 9 twist and then they would go through the sound barrier.
Click to expand...
  • Like
Reactions: 6brshooter

Your PVA prefit experience

6brshooter
bohem said:
The performance improvement that I saw was only generated when shots went past 1s of flight time. At 1200yd I got much tighter waterlines on 6.5's and 6's especially as temps dropped and the DA's approached 0.
Click to expand...
I can see that, my DA is usually 1500+ when I get to shoot. Can I ask thoughts on why watermark held better, more gyroscopic stability?
Click to expand...

Your PVA prefit experience

bohem
6brshooter said:
I've used 8tw forever in 6mm with 6br to 243AI, never had an issue or reduced bc with 107smk or 105vld & hybrids. I did have 2 identical barrels(as much as possible with 2 barrels), same chamber same length and contour and maker. 1 was an 8tw and the other a 7tw, the 7tw shower pressure at lower velocity than the 8tw(same bullet, brass, powder, and primer). This is anecdotal, but unless I'm gonna shoot something heavier than a 108, I stick with 7.5 or 8tw.
Click to expand...
The performance improvement that I saw was only generated when shots went past 1s of flight time. At 1200yd I got much tighter waterlines on 6.5's and 6's especially as temps dropped and the DA's approached 0.
Click to expand...
  • Like
Reactions: 6brshooter

Your PVA prefit experience

6brshooter
bohem said:
Over the past year we have been tooling and testing for 8 twist 6.5mm blanks. I still like the 7.5 better for everything (just like I'm a big proponent of the 6mm 7tw) but one of our OEM contracts pushed for it and we've obliged. I can now advertise that the 8 twist 6.5mm Ospreys are available and we have them on the shelf as of RFN.

The very few orders where we can switch twists for folks have already been called and confirmed, if we didn't call you about an option to switch then it's not available. Going forward, all new orders are able to pick all 3 options.

View attachment 8763274

I get asked all the time what the benefit is:

The 8twist is here due to market momentum. The 7.5 twist does everything that the 8 twist does and does it AT LEAST as well, but there are lots of people who feel they need the 8 so we made it.
Click to expand...
I've used 8tw forever in 6mm with 6br to 243AI, never had an issue or reduced bc with 107smk or 105vld & hybrids. I did have 2 identical barrels(as much as possible with 2 barrels), same chamber same length and contour and maker. 1 was an 8tw and the other a 7tw, the 7tw shower pressure at lower velocity than the 8tw(same bullet, brass, powder, and primer). This is anecdotal, but unless I'm gonna shoot something heavier than a 108, I stick with 7.5 or 8tw.
Click to expand...
  • Like
Reactions: bohem

Maggie’s Funny & awesome pics, vids and memes thread (work safe, no nudity)

sirhrmechanic
Maser said:
So they are officially all gone now. Sad how many of them died so young. :confused:

Login to view embedded media
Click to expand...

Died young, you say?

Login to view embedded media
Buckwheat been shot!

"Mr Wheat!"

Fuck, we were all dying watching this!

Sirhr
Click to expand...
  • Haha
Reactions: armorpl8chikn, Terry Cross and P-Squared

The evolution of the 300 Blackout - great day at the range with Blackarc Munitions and Hornady

supercorndogs
"30 cal punch." 🤣🤣🤣 vs Punch that is actually deadly.

1746204978651.png


I don't see it. 300blk is shooting a lighter bullet slower than a grendel. Why people look at it and think "punch" is beyond me.

I wouldn't want 80k psi vs a grendel bolt in an ar-15. For me the same goes for a 223 bolt though. 🤣
Click to expand...
  • Haha
Reactions: LRRPF52, BurtG and 91Eunozs
Load more
Top Bottom
Back
Home
Forums
Merch
Alerts