BSA Scorpian SE .22 Chrono.

[Sweeney-Todd 208]

Hi All.

 

Well, I have put about 800 pellets through the SE now, so thought I would have her over the Chrono for a look.

Considering this is a non regd rifle straight out of the box, with no tuning, I was happy with the results.

 

I have found with my rifle, that she prefers a 200 Bar fill, rather than the reccomended 232 Bar.

 

From the 200 Bar fill, down to 90 Bar, the rifle returned a shot count of 110.

 

515......Start of 200 Bar fill using JSB Exacts 15.9 grn .22

520

524

525

523

524

528

530

525

528

 

527

532

533

534

536

537

540

537

540

540

 

542

543

541

543

546

546

546

546

545

549........down to 160 Bar.

 

546

549

553

551

551

551

553

553

556

553......Down to150 Bar

 

554

556

556

554

559

556

558

559

559

558

 

559

561

560

560

556

557

561

560

561

561

 

561

559

560

559

560

560

560

561

561

561.......140 Bar.

 

558

556

556

556

561

559

556

556

560

557........125 Bar.

 

 

557

555

554

555

555

554

551

553

550

549......110 Bar

 

549

550

548

549

544

546

546

546

544

541........90 Bar

 

542

540

538

537

536

534

534

529

529

526.......down to 70Bar.

 

 

If my sums are right, she is giving an avg MV of 547.68 = 10.59ftlbs.

 

Idealy I would like to get this up to around the 567 mark returning approx 11.35ftlb.

 

From the lowest reading of 515 to the highest of 561 there is a difference of 46fps = 0.07ftlb so not too bad at all.

 

Maths is not my strong point but I think I have this near as damn it

 

Might be of use to other SE owners to compare and ponder over

 

 

 

ATB.

 

 

 

Bill.

[zini 1,939]

Hi Bill,

 

Brilliant post mate

 

About 180 bar to 90 bar seems the best and straighest power curve for your rifle mate.

 

Between them pressures you are only getting a 21 fps variation and thats over around shots so pretty awesome for a self regulating rifle. Some of the figures could also be down to slight change in pellet weight and not your rifle etc so really good results i think mate.

 

On 180 bar you would still get around full power shots mate at a very consistant level and noone can shoot rabbits on a night and carry them around .

 

I chronoed my .177 version on Andys Skan but we only did the first 20 shots and not the whole charge so this info is good.

 

If i remember right we had a total variation of 5 or 7 fps over 20 shots with AA Fields and a power of 11 something (results on my other pc back in the UK ).

 

I may also try a 180 bar fill, zero the SE and see how she does .

 

I think that i should still get around 60 or 70 full power shots in .177 from 180 bar.

 

ATB

 

Si.

Edited August 15, 2011 by zini

[Elliott 436]

Hi Bill, did a couple of chrono tests with my HW100 and found my rifle was running around the similar ft/lb mark as your BSA Scorpion SE until I used my Napier Pull Through Kit after which it rose to 11.6ft/lb using the same pellets. Might be worth mopping the barrel out and running a short string over the chrono to see if it makes a difference for you?

 

I did a couple of YouTube vids for mine to show the difference of using the Napier Pull Through. Not the most exciting videos to watch but it proves the point

 

Before:

http://www.youtube.com/user/elliottg123?feature=mhsn#p/a/u/2/3wH5d9j3BBk

 

After:

http://www.youtube.com/user/elliottg123?feature=mhsn#p/a/u/0/MUlocKmOKgw

 

ATB

[zini 1,939]

Nice post Elliott.

 

Just goes to show cleaning a barrel is very important.

 

Si

[Sweeney-Todd 208]

Hi Bill,

 

Brilliant post mate

 

About 180 bar to 90 bar seems the best and straighest power curve for your rifle mate.

 

Between them pressures you are only getting a 21 fps variation and thats over around shots so pretty awesome for a self regulating rifle, and some of the figures could be down to slight change in pellet weight etc.

 

On that you would still get around full power shots mate at a very consistant level.

 

I chronoed my .177 version on Andys Skan but we only did the first 20 shots and not the whole charge so this info is good.

 

I may also try a 180 bar fill, zero the SE and see how she does .

 

ATB

 

Si.

 

 

Hi Si.

 

Glad you found it interesting

 

Hopefully......... as the SE is the new boy on the block, all these little bits n bobs in the posts from different people will prove usfull to new owners of the SE.

 

Finding out all the little quirks etc, and comparing notes.

 

Your spot on with the figures and pressures there mate

 

The pellets were straight from the tin, not wieghed, so even more impressive results I think.

 

Cant put this rifle down, loving it :laugh:

 

Be interesting to see if yours prefers the 180 fill aswell

 

ATB.

 

 

 

Bill.

[Sweeney-Todd 208]

Hi Bill, did a couple of chrono tests with my HW100 and found my rifle was running around the similar ft/lb mark as your BSA Scorpion SE until I used my Napier Pull Through Kit after which it rose to 11.6ft/lb using the same pellets. Might be worth mopping the barrel out and running a short string over the chrono to see if it makes a difference for you?

 

I did a couple of YouTube vids for mine to show the difference of using the Napier Pull Through. Not the most exciting videos to watch but it proves the point

 

Before:

http://www.youtube.c...u/2/3wH5d9j3BBk

 

After:

http://www.youtube.c...u/0/MUlocKmOKgw

 

ATB

 

 

 

Hi Elliot.

 

Your a star mate, thanks for your input.

 

Cleaning the barrel was the first thing I did when I took it out of its box......well......after kissing it that is

 

First class advice mate, thank you

 

 

ATB.

 

 

Bill.

[secretagentmole 1,701]

Do not forget Bill she won't really settle down and start giving her all until you have put a fair few hundred through her! So keep an eye on it and it might just get up a bit higher!

[Sweeney-Todd 208]

Do not forget Bill she won't really settle down and start giving her all until you have put a fair few hundred through her! So keep an eye on it and it might just get up a bit higher!

 

 

 

Hi Mike.

 

I have put about a 1000 pellets through her now, including the chrono I have just completed.

To be honest I think most of the rough edges are seen to now.

A spring rifle will bennifit from a good bedding in, but with a PCP the power does not really increase that much with use, air pressure remains constant within the rifle, the hammer hitting the valve may smooth out a bit, but thats all really.

 

Will try her again in a bit.

 

 

ATB.

 

 

 

Bill.

[zini 1,939]

Ill let you know Bill when i get back in the middle of October.

 

I left my F1 chrono down at Andys so when he comes up to mine with Davy for the weekend when Im back Ill ask him to bring it with him and maybe we will be able to do a test at 180 bar and see how she does over 50 to 60 shots.

 

I know that just before i came back to Canada and i had all my rifles at my house (now they are all locked away in a mates gun cabinets at his house waiting for my return) less LJ's Ultra that she is using to kill those bloody crows and squizzers that keep wrecking my bird feeders

 

I was playing about with the SE on one of the allotments i shoot bunnies on, just shooting 5 shot groups to see how she was shooting now the barrel was all clean, the back stop was a piece of 4 miker from a old kitchen top at 30 metres (32 yards).

 

A fly landed on the back stop so i flicked the cross hair onto it and slipped the second stage.

 

The fly exploded in a mass of yellow and red on the back stop. I was well impressed with her.

 

Its just a totally new rifle now ive got the BSA VC silencer fitted to her and the barrel as had a good pull through with Davys cleaning kit then mine when i got home from Brighton.

 

When i get back in Oct Im going to take her down to Swindon one Sunday and give her a run out against Davys AAS410 and Andys BSA r10 mark 2 which are both brilliant rilfes to see how she competes against them.

 

I think that she will be do herself proud if i do my bit.

 

They are just so good its unbelievable, well worth the £ i paid for mine.

 

Si.

Edited August 15, 2011 by zini

[zini 1,939]

Sorry double post

 

Si

Edited August 15, 2011 by zini

[Sweeney-Todd 208]

Ill let you know Bill when i get back in the middle of October.

 

I left my F1 chrono down at Andys so when he comes up to mine with Davy for the weekend when Im back Ill ask him to bring it with him and maybe we will be able to do a test at 180 bar and see how she does over 50 to 60 shots.

 

I know that just before i came back to Canada and i had all my rifles at my house (now they are all locked away in a mates gun cabinets at his house waiting for my return) less LJ's Ultra that she is using to kill those bloody crows and squizzers that keep wrecking my bird feeders

 

I was playing about with the SE on one of the allotments i shoot bunnies on, just shooting 5 shot groups to see how she was shooting now the barrel was all clean, the back stop was a piece of 4 miker from a old kitchen top at 30 metres (32 yards).

 

A fly landed on the back stop so i flicked the cross hair onto it and slipped the second stage.

 

The fly exploded in a mass of yellow and red on the back stop. I was well impressed with her.

 

Its just a totally new rifle now ive got the BSA VC silencer fitted to her and the barrel as had a good pull through with Davys cleaning kit then mine when i got home from Brighton.

 

When i get back in Oct Im going to take her down to Swindon one Sunday and give her a run out against Davys AAS410 and Andys BSA r10 mark 2 which are both brilliant rilfes to see how she competes against them.

 

I think that she will be do herself proud if i do my bit.

 

They are just so good its unbelievable, well worth the £ i paid for mine.

 

Si.

 

 

 

Hi Si.

 

Glad you have left LJ to keep a grip on the table wreckers

When you go to Swindon and visit Davy and Andy, be gentle with them I dont think you need have worries about the performance of the SE or yourself.

 

Although you may have a problem prising the SE out of their hands if you let them try it out

 

This is a big leap forward for BSA after some of the problems they had with a few of the R10s.

 

Nice shot on the fly by the way........I did the same with a Midge at 50yds :tongue2: :laugh:

 

ATB.

 

 

 

Bill.

[secretagentmole 1,701]

Si, the only time you get points for flies is when you play 301 or 501, you get them by the legs....

Edited August 15, 2011 by secretagentmole

[Elliott 436]

Ill let you know Bill when i get back in the middle of October.

 

I left my F1 chrono down at Andys so when he comes up to mine with Davy for the weekend when Im back Ill ask him to bring it with him and maybe we will be able to do a test at 180 bar and see how she does over 50 to 60 shots.

 

I know that just before i came back to Canada and i had all my rifles at my house (now they are all locked away in a mates gun cabinets at his house waiting for my return) less LJ's Ultra that she is using to kill those bloody crows and squizzers that keep wrecking my bird feeders

 

I was playing about with the SE on one of the allotments i shoot bunnies on, just shooting 5 shot groups to see how she was shooting now the barrel was all clean, the back stop was a piece of 4 miker from a old kitchen top at 30 metres (32 yards).

 

A fly landed on the back stop so i flicked the cross hair onto it and slipped the second stage.

 

The fly exploded in a mass of yellow and red on the back stop. I was well impressed with her.

 

Its just a totally new rifle now ive got the BSA VC silencer fitted to her and the barrel as had a good pull through with Davys cleaning kit then mine when i got home from Brighton.

 

When i get back in Oct Im going to take her down to Swindon one Sunday and give her a run out against Davys AAS410 and Andys BSA r10 mark 2 which are both brilliant rilfes to see how she competes against them.

 

I think that she will be do herself proud if i do my bit.

 

They are just so good its unbelievable, well worth the £ i paid for mine.

 

Si.

 

I bet they'd be one hell of a rifle tuned (if they even need tuning?!). Would like to see the result of a tench reg fitted.. they really would take some beating

[zini 1,939]

A midge at 50 yards Bill lol, nice shooting

 

No honestly pal Davy and Andy were on fire when i was there shooting with them over leave.

 

Im sure they couldnt miss.

 

Si

Edited August 15, 2011 by zini

[zini 1,939]

Hi Elliott,

 

They are brilliant rifles straight out te box once the barrel has been cleaned as its really dirty when new from the factory.

 

I reckon with a Tench reg in it it would be just about the perfect rifle.

 

Si