Jsb king heavy mk2 in rpb barrel

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Achilles_13

Achilles_13

Member
Jul 27, 2019
33
11
Flanders
Hey everyone

I ordered 5 cans of what I thought was jsb king heavy but just noticed that I ordered king heavy mk2… It was a rush job and must have missed the mark.
Has anyone on here used these in their .25 rpb barrels? I have not tried those yet and am wondering of I should just immediatly return them. My p3 loves the mk1’s and as it’s quite a purchase I’d kove to hear some experiences from other users… thanks!

edit: mkII outperformed the mkI at “longer” range out of my rifle.
 
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If your gun likes the MK I the MK II's will PROBABLY be fine. My Royale 500 shoots both very well but I'm not familiar with the rpb. If you want me to send a handful to try (so you don't have to open your new tins) I'd be happy to do that for you. PM me.
Gerry
EDIT: Just noticed you're in Belgium. DOH! I think my offer might be cost prohibitive.
 
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Gerry52 said:
If your gun likes the MK I the MK II's will PROBABLY be fine. My Royale 500 shoots both very well but I'm not familiar with the rpb. If you want me to send a handful to try (so you don't have to open your new tins) I'd be happy to do that for you. PM me.
Gerry
EDIT: Just noticed you're in Belgium. DOH! I think my offer might be cost prohibitive.
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Thank you for the offer! cost prohibitive is the right wording for it. I’ll just try some and if need be send the rest of the cans back. let’s hope this was not a expensive mistake at almost 20 usd per can 😅 it’s because the mkI’s and my current slug of choice are bang on at respectively 40 (mkI) and 55 (slug) yards without any changes having to be made to the scope. If the mkII’s have too much horizontal difference to the mkI’s they’ll go back. Thanks again for the kind offer!
 
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Achilles_13 said:
Thank you for the offer! cost prohibitive is the right wording for it. I’ll just try some and if need be send the rest of the cans back. let’s hope this was not a expensive mistake at almost 20 usd per can 😅 it’s because the mkI’s and my current slug of choice are bang on at respectively 40 (mkI) and 55 (slug) yards without any changes having to be made to the scope. If the mkII’s have too much horizontal difference to the mkI’s they’ll go back. Thanks again for the kind offer!
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No worries. I'm hoping the MKII's will work well.
 
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Gerry52 said:
No worries. I'm hoping the MKII's will work well.
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Update, they worked great… outperformed my mkI’s out to 60 yards by a large margin. Somehow the mkI’s are pellet on pellet out to 40y but scatter to 1+ inch at 60… looks like I was not at my best today as the slugs that performed half inch at 60 last week spread to an inch today 😅
 
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Achilles_13 said:
Update, they worked great… outperformed my mkI’s out to 60 yards by a large margin. Somehow the mkI’s are pellet on pellet out to 40y but scatter to 1+ inch at 60… looks like I was not at my best today as the slugs that performed half inch at 60 last week spread to an inch today 😅
Click to expand...
If I remember correctly the MKII's have the deeper skirt. I think that helps with the long range stability somehow. My .25 loves em. Glad they worked!
 
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