JSB Jumbo Exact Monster .22 (25.4gr)

[ztirffritz]

Does anyone have experience to share with shooting the JSB Jumbo Exact Monster .22 (25.4gr) in their Prod? I'm curious to know if it's worth risking the money to buy a tin...or 4. I only found 1 reference to them on the forum, but in a Bobcat.



http://smile.amazon.com/gp/product/B003M4IGUC/ref=pe_385040_30332190_pd_te_s_wl_ti/179-6808941-9747012
https://jet.com/product/JSB-Match-Diabolo-Exact-Jumbo-Monster-22-Cal-2539-Grains-Domed-200ct/ba58e6d7bd0b4b6e97f67d9cf4f30c99
http://www.pyramydair.com/s/p/JSB_Match_Diabolo_Exact_Jumbo_Monster_22_Cal_25_39_Grains_Domed_200ct/722

 

[ajshoots]

I shoot them out of my .22 WAR equipped mrod. I shoot them at 920fps and they are very accurate.

I have my prod regged and shooting 700 fps with 14.3's. I will send a couple monsters over the chrony and see if they will print a decent group. Will report back in a few.

 

[ajshoots]

With Huma reg, I get 704fps avg with 14.3 crosman boxed premiers. Both the crosman and jsb jumbo rs shoot into dime sized groups at 30 yards.

Made no changes to the gun and sent 4 25gr monsters over the chrony. 607, 606, 606, 605. I topped the gun off to 3000psi and fired a whole mag of 8 shots at 30 yards and another mag at 75 yards. 30 yard group was literally 2" at best. At 75 I was watching the pellets fling wildly at my 75 yard back stop. I didn't miss the large old ash stump that is my 75 yard back stop, but that isn't saying much. Lol!!

I will admit my stock prod barrel is not the greatest, and you may have better luck, but the monsters are surely a bust for my prod!!

 

[ztirffritz]

Thanks AJ! Sounds like those aren't the best option for the Prod.

 

[Yrrah]

This 5 shot group shot at 50 yards with FX Elite and ST barrel. Sub half inch is top hunting accuracy at that range.

You could always re-barrel?
Kind regards, Harry.

 

[ajshoots]

I have considered re-barreling my P-rod. TJ barrel liners has a barrel that looks really good in .22!! I am planning to get a blank for both my p-rod and m-rod in the near future.

 

[NorthLand43]

"ztirffritz"Does anyone have experience to share with shooting the JSB Jumbo Exact Monster .22 (25.4gr) in their Prod? I'm curious to know if it's worth risking the money to buy a tin...or 4. I only found 1 reference to them on the forum, but in a Bobcat.



http://smile.amazon.com/gp/product/B003M4IGUC/ref=pe_385040_30332190_pd_te_s_wl_ti/179-6808941-9747012
https://jet.com/product/JSB-Match-Diabolo-Exact-Jumbo-Monster-22-Cal-2539-Grains-Domed-200ct/ba58e6d7bd0b4b6e97f67d9cf4f30c99
http://www.pyramydair.com/s/p/JSB_Match_Diabolo_Exact_Jumbo_Monster_22_Cal_25_39_Grains_Domed_200ct/722

Hello.
I have a Mrod that shoots best with the 5.52 head. Not sure if that holds true for Prods too.
I have shot the JSB Monsters, but did not have very good results. 
I posted a review of some heavies over on GTA. PM me and I can send the linky. Not sure if I can post pics here yet. New to the site.

 

[Jedediah]

I have shot them out of my m rod and my gladiator neither had good results. I'm not sure what the m rod shoots at as I don't have a chrony, but the chrony slip that came with my gladiator shows an average of 891 with jsb 18s. They shot "better" with the gladiator but poor at best.