What speeds are you getting with Feinwerkbau 300’s ?

6fpe is what it should be about.

Speed depends on pellet weight.

Brian

@djna 

Sorry, can't help with any numbers. I just had to pop in and say "Cool! A lefty Tyro!", lol.

Mine gives me 580ish.   I tried a Maccari spring one time, but quickly took it out.  Ten meter guns normally shoot in the 570 or 580 range.

@packrat1947 

Thanks , I’m going to try run some different pellets—  be honest I’m struggling with the sights at 10 meter lol might have to put scope on it. 

@djna I shot 30 shots at 10 yds. in Aug.  This is with a bipod & rear sandbag. Sometimes the target bull will go goose-egged - and waver around.  I'm 77.  

@packrat1947 

Nice work, I’m shooting off bags right now, might give Bipod a try 👍🏻

These pellets really shoot really good in my FWB 300 and Anschutz SuperAir SSPs.  Pay no attention to the "Training Grade" label.  These are perfectly equal R-10s & H&Ns. 

@packrat1947 

thanks for the info on those pellets. Never tried em before. I’ll get some ordered and see how they perform. 

I tried various pellets a few years ago... here are the results...

AA Falcon, 7.33gr, average 658 fps, SD 4

R10 Light, 7.63gr, average 532 fps, SD 25

JSB Exact Express, 7.87gr, 636 fps, SD 4

Crosman Premier 7.9gr, 575 fps, SD 14

@djna 

Question is not what you are, but what you should.

FWB barrels are exquisitely made and among the top 3 barrels in the world as far as airguns are concerned.

The Match barrels are designed to provide optimum stabilization at around 550 fps, which means about 5.5 ft-lbs (7.5 Joules) with most Match pellets in the 7.9 to 8.5 grs. class that dominated the sport when the rules were made (1960's).

Nowadays we have lighter pellets that do retain the stability of heavier ones, but the MV is still the more restrictive constraint when you are shooting WC (flat-faced) pellets.

So, IF you are limiting yourself to WC's then shooting one of those pellet at any MV much in excess of 550 fps will not be as accurate as it could.

Now, given the quality of our current day paper targets, it is not absolutely necessary to restrict yourself to WC's, you can shoot domed, and even some HP will cut holes good enough to score positively.

Unless you are in a league that requires WC's (and it is one of the current idiocies about Olympic Match, given that they use electronic scoring systems), you might need to look for a pellet weight that will get the best results.

In WC's, apart from the excellent suggestion about the QYS pellets, I would add the JSB 100's, the RWS SuperMag and, amazingly, the Selected Match grade from the "Rifle" brand.

If you want to shoot domed, then try all the offerings you can get from QYS, JSB, & H&N. Between these three brands you can have pellets from 7.33 grs to 10.6 grs.
From the Gunsmithing side, I would NOT recommend going higher than 9.57 grs.

HTH, keep well and shoot straight!

HM

@airmojo
thanks for the info, my guns not pellet picky at 10m range- I was running RWS Meistklugens believe 7.9 Grains - can’t remember off hand - but the guns not pellet picky, shoots most ammo accurately.

@hector_j_medina_g 

Hi Hector, Totally agree on Feinwerkbau barrels , I also have FWB 124 it will stack them tight as well.

My primary use is informal 10m and plinking with the gun. Basically it’s one of my indoor Winter guns when the weather is to cold or Foul to shoot outside. 

Per recommended, will stay away from heavier pellets. 

Everytime I take this gun out usually go through several different ammo’s to see what it can do, definitely fun accurate gun to shoot.

 Kind Regards 

@djna Mine seems to like most pellets too as far as being accurate... I was testing in my basement at about 42 feet, and I have a Bushnel AR/223 4-12x40 scope on it.

@airmojo  I’m going to need to mount a scope, my eyes are struggling with the sights lol - definitely want a light wait scope- see if I got anything in stash, if not might have to order a new scope.

@djna I should have a New compact Tasco 4x32 AO A/R with rings and Hammers 3-9 x32 with rings ! Let me know what you need ! I have to many extras just laying around!

Thank you  TomCin , I found small scope I wasn’t using I’m going to mount. 

I have a 300 and a 300S, both rebuilt by pros, that shoot light pellets well north of 600 FPS. For plinking or sporting use the extra zip with light ammo is useful, but as Hector noted, the guns are really designed to be 550-600-ish with heavier match pellets. 

As an aside - when these guns were new, the old UIT 10-meter rules had a curious requirement for pellet weight to match that of a solid sphere of 4.5mm diameter - about 8.4 grains. Which is why vintage match pellets like RWS Meisterkugeln or H&N Rifle Match weigh that.

@mdriskill 

Thanks for the comment, Mike.

One thing I am always very aware of is the efficiency of each system.

In the 300's system, the efficiency is around 20%, meaning that for every ft-lb gained, the system needs to receive 5 ft-lbs from the shooter.
AND, where do those 4 ft-lbs go? Well, they go in heat, vibrations, and friction.
Friction and heat go together in wearing out a mechanism. ANY mechanism.

So, if a properly used 300 can last 100 k shots between service stops, one that is fed a steady diet of light pellets (6.5's to 7.9's), or gets installed an "Arctic" spring may last much less.

Not that the gun will break, they are too well made for that. It simply will need a more frequent service. 
These guns are not hard to service and spare parts are plentiful, so it is not a real deal-breaker.
Just something to be aware of.

I enjoy immensely shooting my 380 with JSB Express's at 35-37 yards. I just do not do it everyday.
If I wanted to do that everyday, I would pick up my D100

AaMoF, I have a copy of the 300 made in China, that is awaiting a "Power-Up", LOL!

😉

Keep well and shoot straight!

HM

Hector, do you have an arctic spring to up the power on your clone or is there another spring out there that is suitable for the job?  I do have access to one old Merlin square spring that yielded 695 - 700 fps with express JSB pellets.

It’s doing 540fps w/4.51 7.56 Finale Match pistol Wadcutters. It’s not a zinger but consistent. Being that’s David’s work internally and bluing, an otherwise pitted loss. I brought the stock back to current condition.

It’s a lefty so I salvaged it as best I could at the moment. Stock only had some wear, nothing horrid. 

I’ve shot less than 500 through it since 21’. Today’s weather is roughly 27*F. Took it out from 68*F to get you a reading so it wasn’t actually cold. I am not sure if it would suffer harmonically to be pushed to 6ft-lbs or if 4.50 would return a little more fps. Haven’t really been focused on shooting for the past 4 years. Hoping to get back to that.

 I like it for ease of cocking and durability, aesthetics and precision. The lefty 602 has a better anatomical stock & definitely better for the cold. I detest the limitations on scoping. Right now I have a 1.5-4 Blue Ribbon on it. I’d like to upgrade the optics on everything for glass clarity, enjoyment of side focus as a lefty and faster near/far focus ranging.

@canadian_ft 

No, Jeff.

This is going to be part of the research.

I'll write it up so that anyone can follow.

Keep well and shoot straight!

HM

@hector_j_medina_g 

This is Tim, Hector.  I may have shot my old FWB300UN with you at one of the Crosman matches.  I was a real dope and sold it.  

Now I am looking for a beat up 300 I can restore and shoot in some of our vintage gun FT matches.

Data below is: pellet name, weight in grains, average FPS of 15-shot string, standard deviation as % of average velocity. Some of these were shot quite some time ago. No aftermarket springs etc. in any of these.

300 (not "S") no. 63657. Rebuilt by the late Randy Bimrose.

RWS Hobby, 6.9, 683, 0.65

Lapua Pistol, 7.2, 686, 0.65

JSB Match, 8.0, 644, 0.74

AA Falcon, 7.3, 659, 0.63

300S Match no. 138686. Rebuilt by Dave Slade.

RWS R10, 7.7, 594, 0.81

Lapua Marksman, 7.4, 615, 0.89

H&N Match, 8.0, 566, 0.92

JSB S100, 8.2, 600, 1.43

300S Universal no. 303453. Bought used, never opened by me.

RWS Hobby, 6.9, 631, 1.04

H&N Match, 8.0, 581, 0.60

JSB Match, 8.0, 604, 0.57

JSB Express, 7.9, 624, 0.80

300S Junior no. 372997. Bought used, never opened by me (pic is 300SL stock)

RWS Hobby, 6.9, 544, 2.20

RWS Hobby (skirts sized .182), 6.9, 582, 1.49

AA Falcon, 7.3, 604, 0.47

Gamo Hunter, 7.6, 498, 4.12 (yikes!)

@mdriskill 

thank you for the information, that Randy Brimrose gun is screaming lol. 

David Slade and the Factory gun seem very close in numbers. 

really like the 300 on the bottom of picture. 👍🏻

My pleasure...looking at my old files reminds me I need to run some newer numbers on these!

I remember Randy saying 300's often shot a little harder than 300S's, though why that should be I don't know. It was well-used, struggling to push a Hobby 500 FPS before I sent it to him. It has a plain beech stock, and a removable barrel sleeve, both unusual touches. It's also the easiest of these four for me to shoot well.

The 300SU shoots hard but feels pretty rocky to cock and fire. It's overdue for attention from a pro.

The 300SL stock that I keep the Junior action in, was a beater with the finish stripped I found online. Doug Phillips in Texas did a great rescue/re-finish job on it.

@canadian_ft 

Sorry Tim!

Yes I remember your 300.

I still have a number of projects to do before I get to the Chi-300.

😉

Keep well and shoot straight!

HM

@mdriskill I need a barrel sleeve for my Juniors. Is this a possible quest?

@bf1956 

To the best of my knowledge, no factory-made sleeve was made for the 300S Junior. Some sort of clamp-on weight might be the easiest solution.

But FWIW, the gun has a 15mm diameter barrel, same as the full-size 300S, the earlier model 300, the Walther barrel-cockers, and the HW 55. Sleeves made for any of those would need to be shortened, but would fit.

Those all varied in weight though; their outside diameters are:

FWB 300S rear section: 18mm

Walther LG 55: 19mm

FWB 300 and HW 55 400-gram: 20mm.

Walther LGV: 22.5mm

HW 55 900-gram: 25mm

@mdriskill So what I am thinking chromoly tube. Cut to length, chamfered slightly, and cerecoated. Like?

Thanks much for the dimensions. Oh and if you notice the nose cone on the Jr. Is recessed so that dimension would have to be addressed also.

That sounds much better than cutting up a rare sleeve for a classic old rifle actually!

@bf1956 A way better idea is just get or make a weight.   So much more flexible.  Here's one I made many moons ago when I shot High Power.  I put a leather slug in the Allen screw to keep from aggravating the rail.  Finger tight only.  

@packrat1947 Um... aahh...what I am throwing down is a or something to cover up some flaw from many years of use. Rather than try to touch it up, I was thinking sleeve like it's Senior. And I have remeded it.However I don't recall the process of posting pic.

@bf1956 

Why not a Carbon Fiber tube?

Either Matte or "Cello" finish.

Just an idea.

HM

2nd on the carbon fiber sleeve. They are available quite reasonably in many sizes and thicknesses on Amazon. Here's one on a Baikal 61. (The camera flash makes it look much more silvery than it really is.)

@mdriskill I wqas told about 20 years ago when I was messing with   this platform that the 300 had a bit more stroke than the 300S. I think the 150's were the same.

I can't remember the details. 

Knobs