1907 BSA -pellet testing (sort of )

John E

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Took the 1907 BSA down the range for the first time today , the idea was to test it with a variety of pellets at 10m

and 20yards . Unfortunately the range was busier than expected so I was really pellet test and keep going downrange to change targets , just not fair to the other chaps .

It was however a very interesting shoot and great fun .

First 5 shots at 10m with Air arms Diablo Match , seated and rested at a 5 1/2 inch target , 6'oclock hold looked like this ;
1907bsa5 (1).webp


Pretty happy with that and it looks like the barrel is capable of great precision .

The lighting was poor at the 10m target so went straight out to 20 yards with a 6 1/2 ich target and the same AADM pellets . Based on BSA trajectory info and the lower power of this rifle ( probably only 400- 450 fps) I opted for the bottom of the page as an aim point , it grouped quite well with the limiting factor the old git shooting it ;

1907bsa5 (2).webp


For the next 5 shots I kept the same aim point and tried JSB RS 7.33gr , I also opted to shoot with my glasses on , this means I has a better view of the target but both the front and rearsight become less sharp . The result was quite surprising ;

1907bsa5 (3).webp


Clearly the 117 year old rifle is indeed capable of great precision and that group surprised the other down the range . Naturally others wanted a go and together with it being busy today that was the end of the pellet testing .

I need to spend more time figuring out the glasses situation , that is not the first time I have shot better at distance with them on and that shouldnt be the case , the traditional view should be with the clear front sight . I also need to factor in how much was the glasses and how much was the pellet change .

I also need to figure out if I am comfortable with the low aim point . I was unaware this isnt the original rearsight (3rd type ), its from a rifle years later and as it is I dont have enough adjustment to have a 6'oclock hold , let alone if I wanted to use it point of aim , the BSA trajectory figures suggest the rifle is zerod for around 50 yards , but that doesnt factor in the lower velocity , either way the adjustment is not enough to lower the POI . Changing the rearsight wont impact on the precision of the rifle , but it may help with accuracy in terms hitting the bull . Unfortunately a rearsight would be costly . The BSA trajectory figures would suggest that
The other question is , do I buy another spring to get the power to where it should be ? At the moment this rifle shoots very sweetly , not twang and very little recoil . The trigger is great and its a delight to shoot and capable of precision . Having more power may negatively impact on the precision and accuracy and make the rifle less pleasant to shoot . It would seem logical to try it because it would be no great loos to change back to the current spring . Given the rifle is just for target shooting its tempting to leave it as is , would a more powerful spring put more stress on other areas of the old girl ?

Such a delight to shoot , great fun for me and the others that try it . I still cant quite believe the rifle and I did a group well under 5p at 20yards and with glasses on .
 
Very nice results.
Any pics of the rifle?

Interested, as I was given one some years ago & have not done anything with it. Yet.
Seeing what they are capable of, in theory, would suggest I dig it out & have it checked over, possibly see if I can find a period aperture sight for it too...either issue or commercial
 
Very nice results.
Any pics of the rifle?

Interested, as I was given one some years ago & have not done anything with it. Yet.
Seeing what they are capable of, in theory, would suggest I dig it out & have it checked over, possibly see if I can find a period aperture sight for it too...either issue or commercial
Thanks Jon
I have significant eyesight issues due to Glaucoma . So to able to shoot like that with Iron Sights is really pleasing . I too am looking at Aperture sights , I think if I can get the diopter effect it may help with focussing consistency . Plus they look really cool .

I hope you do decide to have a crack with yours and hope you share the results .

This is the 1907 ;
1907BSA1.webp
 
This is 47 meters with a 1911 .22 BSA by a New Zealand collector, standing but leaning against something. My 1911 the same type will do this and better with H+N 5.54's.


ATB, Ed
😎 Bet he had a lot of fun doing it too . I understand it's more important to seek out the larger head sizes with the .22 ?
 
😎 Bet he had a lot of fun doing it too . I understand it's more important to seek out the larger head sizes with the .22 ?
Yep can be but depends on each gun. .22 is actually 5.6mm vs modern barrels sold as .22 which are actually 5.5mm, all started with the German imports which are 4.5mm and 5.5mm, 4.5mm being exactly .177 imperial (.177165 inches) .

Older Brit guns were "true" .22 (no 2 bore and .177 was no 1 bore / .25 no 3 bore) so the larger die sized H and N's often go better, totally depends on the gun, many folks report superdomes and Hobbies are acceptable, but some well used oldies prefer the older pellets, hence why old Wasps or Webleys or Plyarms sell well when they pop up.

Another good one was Defiant "vintage", sadly no longer made, I have a box of these and maybe 2000 Wasps / 500 large head H+N's which hopefully will see me out as I shoot my old stuff far less due to eye issues.

ATB, Ed
 
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