bulldog accuracy mods? Here so far!

[Shooting Targets]

Well trying to tame down the bulldog some for accuracy. I am wanting input on your mods and things witnessed ?
My Mods so far. 
1. Bulldog Mega Moderator..
2. Bulldog 5 piece barrel supports
3. Added foam grip support more relaxed group
4. Added top mounted bipod for less muzzle jump.
5. Clean the barrel with supplied cleaning patches. 
Thinking about adding in a depinger and a regulator to the bulldog not sure if that will tighten the groups up any more. 
As of now I am shooting about 1/2 inch groups or less at 25 yards. Have not shot out at 50 yards yet. 

Suggestions for increase accuracy on the bulldog ?

Jay

 

[Wager]

Hi Jay
It would be a depinger or a regulator because a reg works as a depinger. You could always polish the barrel, that should help a little. What are you using for bullets/pellets and have you tried others?

 

[Shooting Targets]

wager; right now I have use the JSB 81 grain pellets and the jsb red tip. The red tip pellets group a little better at 25 yards. I am not sure how well at 50 yards yet. 

So how hard is it to polish the barrel ? Are you saying a regulator would do both jobs as a depinger and regulate the air flow as well ?

Trying to thing of other things to get this too really shoot the desired 100 yards for groupings.

jay

 

[Wager]

http://www.airgunnation.com/topic/lapping-and-polishing-barrels/

Here is a great write-up on lapping and polishing from ajshoots. Do not try and lap your barrel! But you won't hurt anything by polishing it. Just be careful with your barrel crown when you do it.

And yes a regulator does the same job as a depinger while also regulating air.

 

[Wager]

You mite also want to check your barrel crown uniformity and overall barrel for burs. I would expect tighter groups then that at only 25 yards. As check and make sure your not clipping your moderator to.

 

[Shooting Targets]

Wager, do you have a bulldog or a big bore ? Curious what you are shooting. I think I will try to polish the bore. I will look at the crown as well.
1/2 group probably between 1/2 and 1/4 inch group was my best shooting basically 1 hole. Those .357 are probably about 1/4 of an inche themselves. 
I also noticed the flat tip red jsb were leaving a true round hole while the .357 jsb looked ripped a bigger hole. Not sure if that is because of the tips. Flat nose pellets leave a nice round hold vs domed. 

jay