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Tuning Adding length to Contiuum 380mm

I bet something could be 3d printed....



I am ordering a 500mm shroud for mine as my rifle recently took a fall from where I hung it (by the bipod feet, the feet came off!) 

I've been itching to dial the gun in for some light weight slugs in .22

I had a .22 500mm barrel before (sold with my other crown) and didn't even fully dial it in, and was seeing 50fpe from it. Max on 380 is around 33 or so I think
 
I bet something could be 3d printed....



I am ordering a 500mm shroud for mine as my rifle recently took a fall from where I hung it (by the bipod feet, the feet came off!) 

I've been itching to dial the gun in for some light weight slugs in .22

I had a .22 500mm barrel before (sold with my other crown) and didn't even fully dial it in, and was seeing 50fpe from it. Max on 380 is around 33 or so I think

From the 380mm barrel on my Crown Continuum the most I have seen is 34.7 Ft Lbs using H&N Barracuda Match 21.1 gr pellets (The Monster Redesign 25.39 gr. Pellets delivered 34.4 Ft Lbs). I could probably get more, but would have to up the reg from the current 140 Bar setting and really screw with the Hammer spring. It’s not worth it in my opinion, as the 380 shoots perfectly at the current tune. (In fact I usually shoot it at a setting of 3 or 4 where it delivers 33.7 Ft Lbs with the 21.1 gr). If I want more power then I either use a different barrel (the 700mm gives me up to 48 Ft Lbs with the same tune) or a different gun (i.e. break out the Impact in .25)

Chris
 
My 700mm is tuned to about 62fpe, can go higher, just shoots 36gr slugs best there.



I only shoot 18.13 gr pellets thru the 380, nothing heavier. I have run the 380 on my slug tune, and I think it picked up maybe 10 or 15 fps? Lol. Super loud.

Wow. 62 FPE! I am impressed. I’m gonna have to go look at my 700mm tune again🤔

It peaked at 65. My reg gauge says 155 bar, but factory gauges have been known to be off. I use an additional 7gm hammer weight, and massaged the barrel port/pellet probe to streamline airflow. I run the gun on 30 cal transfer port, and bellmouthed the inlet of the barrel port to match the .30 opening 
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That's why mine was outputting more fpe. More weight and more pressure will get it around 75fpe


 
My 700mm is tuned to about 62fpe, can go higher, just shoots 36gr slugs best there.



I only shoot 18.13 gr pellets thru the 380, nothing heavier. I have run the 380 on my slug tune, and I think it picked up maybe 10 or 15 fps? Lol. Super loud.

Wow. 62 FPE! I am impressed. I’m gonna have to go look at my 700mm tune again
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It peaked at 65. My reg gauge says 155 bar, but factory gauges have been known to be off. I use an additional 7gm hammer weight, and massaged the barrel port/pellet probe to streamline airflow. I run the gun on 30 cal transfer port, and bellmouthed the inlet of the barrel port to match the .30 opening 
20190816_102301.1602661262.jpg
20190816_104117.1602661268.jpg
20190816_104209.1602661275.jpg




That's why mine was outputting more fpe. More weight and more pressure will get it around 75fpe


Like I said, I’m impressed. Not sure I’ll go to quite the extent you have, but I think I’m going to buy either the Huma or the Ernest Rowe modified barrel port and pellet probe.