Getting my BSA R10 Mk2 .177 ready for the FT match this weekend
- Thread starter davecole
- Start date
I tried every pellet, head size and weight I could find.
It hated JSB’s believe it or not. And I have, like, a dozen tins of those.....
I discovered it shot the H&N pretty good so I tried different weights and head sizes. 10.34’s 4.52 showed real promise but 2 in 10 were flyers. Then I remember when I tried the different head sizes in .22, the 21.14’s in my Talon a dozen years ago, that .01” made all the difference in the world.
Found a tin of H&H Baracuda Match 10.34 4.50 (shown)
BTW... these were shot off a bag, in the dark, with a flashlight on the target using an Athlon FFP at 16x (hunter class) ?
It hated JSB’s believe it or not. And I have, like, a dozen tins of those.....
I discovered it shot the H&N pretty good so I tried different weights and head sizes. 10.34’s 4.52 showed real promise but 2 in 10 were flyers. Then I remember when I tried the different head sizes in .22, the 21.14’s in my Talon a dozen years ago, that .01” made all the difference in the world.
Found a tin of H&H Baracuda Match 10.34 4.50 (shown)
BTW... these were shot off a bag, in the dark, with a flashlight on the target using an Athlon FFP at 16x (hunter class) ?
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Thanks for posting. I just got the same rifle and after reading this I dug around and found a tin of 4.50 head size Barracuda Match and shot an identicle group at 50 yards. I need to do some more shooting to fully confirm but I think this pellet may be the ticket. I typically go for big head sizes so if you hadn't posted this I wouldn't have even tried. Thanks.
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Only 7 hearty die-hards showed up due to the threat of rain.
It never did.....
However, practice, practice, practice and lots of preparation paid off with a clean card.
Knocked down 48 of 48. Well pleased with the results.
Going to Dallas in two weeks to meet up with friends and shoot FT there.
Wish me luck!!
It never did.....
However, practice, practice, practice and lots of preparation paid off with a clean card.
Knocked down 48 of 48. Well pleased with the results.
Going to Dallas in two weeks to meet up with friends and shoot FT there.
Wish me luck!!
Upvote 0
Brazos,
I checked about 30 pellets of the 4.50 head size against my Pelletgauge. Only 3 were less than 4.52.....
I plan on doing some more testing on head size as I know-think-believe the shape probably has something to do with these being the better choice.
Something I also did was lower the velocity. Mine out of the box was shooting 960's. I reduced the hammer spring to bring the speed down but when I tried to lower it to around 850 I was getting really weird chrony numbers. For instance, the first shot would be 50 fps lower than the second; so would the third, fifth and so on. In other words, the odd number shots would be 50 fps lower than the even with consistent predictability. Further, I did three 30-shot shot strings just to prove this happening.
I believe it has something to do with the balance of the hammer setting and the factory regulator which, isn't highly regarded.
So I bumped the velocity up until the velocity flattened out which, ended up at 900fps.
I'm going to consider replacing the factory with a XTXair regulator. It's a Huma, just without the adjustable stem. You can find them at www.xtrxair.com and you can see them installed and adjusted on YouTube and by clicking on links found on their website. If you decide to go with the Huma, you may want to consider the fitting kit (longer drilled transfer port and lighter hammer spring)
If you got questions, let me know.
I checked about 30 pellets of the 4.50 head size against my Pelletgauge. Only 3 were less than 4.52.....
I plan on doing some more testing on head size as I know-think-believe the shape probably has something to do with these being the better choice.
Something I also did was lower the velocity. Mine out of the box was shooting 960's. I reduced the hammer spring to bring the speed down but when I tried to lower it to around 850 I was getting really weird chrony numbers. For instance, the first shot would be 50 fps lower than the second; so would the third, fifth and so on. In other words, the odd number shots would be 50 fps lower than the even with consistent predictability. Further, I did three 30-shot shot strings just to prove this happening.
I believe it has something to do with the balance of the hammer setting and the factory regulator which, isn't highly regarded.
So I bumped the velocity up until the velocity flattened out which, ended up at 900fps.
I'm going to consider replacing the factory with a XTXair regulator. It's a Huma, just without the adjustable stem. You can find them at www.xtrxair.com and you can see them installed and adjusted on YouTube and by clicking on links found on their website. If you decide to go with the Huma, you may want to consider the fitting kit (longer drilled transfer port and lighter hammer spring)
If you got questions, let me know.
Upvote 0