.20 Cal JSB Heavy
 
Notifications

.20 Cal JSB Heavy  

  RSS

Luckystrike
( @luckystrike )
Joined: 2 years ago
Posts: 51
2020-01-20 16:05:02  

What do you guys think about the JSB Heavies in .20 cal?  I’ve been shooting the normal JSB .20 cal domes out of my TALONP 12” barrel and it loves them. 


Quote
Topic Tags
ribbonstone
( @ribbonstone )
Joined: 2 years ago
Posts: 270
2020-01-20 17:16:07  

HAve worked in the 5mm's I have at hand (4 of them).

 

Not so much in the only springer....not worse, just not better. 

 

Win in the co2 and two PCP's so long as it is pushed no faster than 920-950fps (which is pretty hot for a 5mm) are working quite well.

 

 


ReplyQuote
BigTinBoat
( @bigtinboat )
Joined: 2 years ago
Posts: 118
2020-01-20 18:34:59  

I have my MRod tuned to shoot them avg 925fps. One hole at 25yds, 1/2" at 50yds.


ReplyQuote
Shambozzie
( @tharris281sc-rr-com )
Joined: 2 years ago
Posts: 111
2020-01-25 09:20:05  
5837233161
5837233471

Group shot @ 85 yds with new jsb heavy 15.9 @ 895. One 12 shot mag . Az tunes rapid mk ll .20 cal

Resized 20190608 124115

 


Luckystrike thanked
ReplyQuote
Pneumatic-Addict
( @pneumatic-addict )
Joined: 4 months ago
Posts: 6
2020-01-30 14:59:55  

I shoot the heavies in my Leshiy with a 250mm barrel.  It's backed-off to 600-ish fps so the neighbors won't notice.  At the ranges I shoot (13 yd to the pecan tree) the POI change is negligible when using the lighter 13.73's, but the heavies smack a little harder.


ReplyQuote
josh3rd
( @josh3rd )
Joined: 2 years ago
Posts: 148
2020-02-01 23:46:39  

In my rx2 they are horrendous. I would trade them in a minute for some old beeman fts.


ReplyQuote