KA Dragunov FPS testing

[BIGMEDCIN]

Hello

For any that might be interested I just received my King Arms SVD, first thing I did was get out the Chrony and do some tests.

All were done with hop set for .028 (just to lazy to remove hop setting!)
this was done indoors, Rifle is in stock form.

all based on 10 shot average

.020....472 FPS....low 468 high 478

.025....439 FPS...low 437 high 444

.028.....415 FPS....low 400 high 417

.030.....397 FPS....low 389.....high 399

Accuracy test, done outside open field, slight breeze at times, shooting at 3ft x 3ft tin sheet hanging off the ground approx 4ft. (shooting from a rest) distance was 70 of my paces..about 190-200 ft.


.020, zip out like lighting, good range get there fast, but shot to shot were not very accurate for sniping, I have a TM spetz at 400fps accuracy is about the same with .020, don't recommend.


.025....even though 30 fps slower, they rip out pretty good also, range is about the same as .020, accuracy is better and acceptable for sniping, if you were in no wind situation, would be a good choice.

.028.....good FPS obviously don't get there as fast as the other two, but seems to be more consistent with the hop setting and shoot straight even in the slight breeze I was shooing in. recommend for sure.

.030....do seem to take long time to reach out, have less range than the ,020 and .025 about the same range as the .028 but slower getting there, hop was good, accuracy was similar to the .028, recommend but with slower reach out time I believe .028 to be better choice for the said FPS the rifle is shooting.


BB brand KSC for all weights.


I need to do more testing, the rifle is pretty impressive out of the box, I found .028 the best choice for what I have, .030 might be better in a rifle with a bit more spring, say 500-520 FPS (w/.020) the .030 would be the way to go.
But for an out of the box sniper I am impressed, 472FPS (with hop set for .028) it likely shoots 490FPS approx w/.020, not bad.

Hits on the tin plate, .028 were the best, I had a ribbon of mind tape at 50 ft and one at the target as trying to keep shots as accurate as possible, except for two flyer's I hit the plate 9 out of 12 shots, the three missed but not by very much, should prove deadly, I did not do grouping on paper target, but the scuffing in the tin showed grouping to be approx 12-14in. Trigger pull on this rifle is simply its down fall, it creeps until beads of seat start to appear, what seems to be endless heavy pull of raspy endlessness it finally breaks! got to try to something about that, accuracy will improve, if you had to do a snap shop or shot on moving target, forget it.

More testing to come, springs on order, my try a couple tight bore barrels for fun, though I don't thing they are really needed, but what the heck.



Cheers

[ColtFarmer]

I think the barrel is already a 6.04

cheers m8 =)

[BIGMEDCIN]

sure is long to, I dought tighter bore would make a big diff. but.
thanks for the info.

[Ilya_7]

that's disgusting, mine was only shooting about 325 fps out of the box.

[BIGMEDCIN]

To try and address the bad trigger condition, I removed the piston and trigger set, I noticed that the trigger piston sear was not straight and very ruff finish, I got out the dremel tool, removed just enough metal from the top of the sear to straighten it up square to the piston, I then ground approx .015-.020in. angled at a 45deg back cut angel, then polished the hell out off the contact surface, put on a dab of grease.

Now the trigger has lost most of its notchiness and has about 30-40% less creep (or initial pressure before break) it is starting to get very acceptable now.

I am going to remove slightly more metal from the sear, but first will need to use machinist dye on the sear and piston to get an accurate reading of how much contact area is left, do not want to go too far and have the rifle discharge premature, then of course polish the hell out of it again, I think this rifle will have an exceptional trigger when done.



Cheers