BigUglyMan
CGN Ultra frequent flyer
- Location
- New Scotland
You got me too....tricky bugger!
Custom Precision Rilfe Makers in Canada?
- Thread starter mlebler
- Start date
You got me too....tricky bugger!
I , like Guntech and Leeper have not had what I would consider stellar results setting a used barrel back and trying to eek that last bit of use from a barrel.
It is exactly the same amount of work to rebarrel, so why not do the job right. Spend the money on a new barrel. For most guys they will get many years from a barrel if it is not run real hot.
Bill
I agree with you that using a single barrel to compare to another even of same make for velocity is not scientific.
Last year for the BCRA Tactical shoot I built 10 nearly identical rifles, all 308s, all with Rock Creek barrels, all with 22" barrel lengths.
The velocity variation between all 10 rifles is less than 25 fps. They all shoot within .5 gr of the same powder load with the same bullet and brass combo.
This was hotly debated early this spring as many would not believe the velocities were are getting from the short barrels.
How or why we are getting nearly 300 win mag performance from these 308s eludes me, but they are performing as posted, and the bores look great after well over 1000 rounds to date.
I also built 3 rifles that are virtually the same but the guys had to have 26" barrels, and both only have gained 15 or 20 fps, with the identical load I am using which again strays from the norm.
Someone posted "tales from a texas warehouse" , I believe it was called, on CGN some time back about experiments by Obermyer , Schneider and some others regarding optimum barrel length for 308. They came up with 21.75 as being the perfect length. It seems they knew something given what these recent builds are capable of.
Found this article on barrel length, some of you may have read it, but I thought it was interesting: http://www.tacticaloperations.com/SWATbarrel/
I shot my first official perfect relay 150-15X with a set back barrel. No complaints here. Obtunded was my scorer as well which made it even that much sweeter.
Last edited:
brenden270
CGN Regular
- Location
- Kootenays BC
1 vote for Bill
Hey guys, I'm new to the site but not new to shooting. I see Bill Leeper has posted on this issue and I would like to cast a vote for him. He has never built me a full custom, however he has done alot of work on various factory rifles for me and I think he is excellent. I don't think he is a full timer like some of the others but he has been around the shooting scene for years. I don't personally believe it is hard to make a new component rifle shoot well given the quality of most barrels, actions, triggers ect. It takes a true master to turn a sows ear into a silk purse and bill has done this for me and many of my discriminating shooting friends time and again. I will have him build me a custom one day in the near future. Great guy, great smith.
Brenden
Hey guys, I'm new to the site but not new to shooting. I see Bill Leeper has posted on this issue and I would like to cast a vote for him. He has never built me a full custom, however he has done alot of work on various factory rifles for me and I think he is excellent. I don't think he is a full timer like some of the others but he has been around the shooting scene for years. I don't personally believe it is hard to make a new component rifle shoot well given the quality of most barrels, actions, triggers ect. It takes a true master to turn a sows ear into a silk purse and bill has done this for me and many of my discriminating shooting friends time and again. I will have him build me a custom one day in the near future. Great guy, great smith.
Brenden
My left side is starting to feel numb already.
Has anyone tried this with 45-46g of Varget and 155 match bullets?
What would Sam Adams say if I told him I wanted to chop a half foot of barrel off my F-gun?
- Location
- calgary alberta
No but we use that charge with 175 gr bullets and it works fine.
Have been playing with some Vit N550 and 190 smks with GREAT results.
Not sure why anyone would want to shoot 155s when bigger better bullets exist
Yah I know it is in the rules that "thou shall shoot ittybitty bullets"
That should get a reaction LOL
heres an article i found about barrel lengths and velocity
http://www.tacticaloperations.com/swatdec2000/index.html
http://www.tacticaloperations.com/swatdec2000/index.html
Not sure why anyone would want to shoot 155s when bigger better bullets exist
(Quote ATR).
This was my first season of F class shooting. When I shot with a fellow (John Marshal) who has been to Bisley 30-40 times(if I recall correctly), he told me that the 155s have served him well for the past 40 years or so out to 1000 yards. Although times do change, I believe there is a lot to learn laying on the firing line next to anyone with such experience. My gun was actually built around shooting the 155 Lapuas with a 1-13 twist 27 inch Gaillard barrel. Once I have this one shot out maybe I'll try something a little faster. I am certainly not opposed to having two F class guns, maybe one for each class.
(Quote ATR).
This was my first season of F class shooting. When I shot with a fellow (John Marshal) who has been to Bisley 30-40 times(if I recall correctly), he told me that the 155s have served him well for the past 40 years or so out to 1000 yards. Although times do change, I believe there is a lot to learn laying on the firing line next to anyone with such experience. My gun was actually built around shooting the 155 Lapuas with a 1-13 twist 27 inch Gaillard barrel. Once I have this one shot out maybe I'll try something a little faster. I am certainly not opposed to having two F class guns, maybe one for each class.
- Location
- calgary alberta
Ron I was joking.
Alot of the F Class stuff is shot with the 155s only I understand.
I am not even sure you could compete using heavier bullets.
Time for an F Class guru to step in please.
All I do know for a fact is that my 22" barrel 308 is spitting 190s out faster than anyone believes and I only need 32 moa to make it to 1000 yards, with those bullets the gongs get knocked down with authority, no little pings and wobbles here. Several of my clients with the same configuration of rifle using 175s had a great time hitting stuff at Summerland at obscene distances, so it seems to me that the old " need a long pipe to shoot long range" theory has seen its day.
Think he's retired and only does work for a select few now. Used to see a lot of his work out at TCRC. He is VERY good!
I've been doing that load for a while now. Awesome velocities and accurate as hell. Have you tried N550 with the 208 AMAX yet? That one really drops jaws...
It is a question of classes.
F-TR class has 156 grains as the maximum bullet weight, this is essentially TR with a scope and bipod.
As of now, there is an F-Restricted class (don't get me started) that allows any 308 or 223 bullet weight, so yes, if you are so inclined, use whatever bullet you want. The 190 Berger or 178, 208 Amax would be a great choice. F-R has restrictions on the type of bipod and rifle weight. In the Open class, 308 is not a popular long range choice due to the plethora of "better" long-range cartridges and bullets. Truth be known, a guy shooting a 155 can kick the ass of any open shooter if he knows what he is doing. Thus, I think this extra class thing is redundent and pedantic.
- Location
- calgary alberta
As soon as I can get some more range time, I plan to try the 208s.
Getting the N550 was the problem, now that I have a few lbs can experiment some more.
As soon as I can get some more range time, I plan to try the 208s.
Getting the N550 was the problem, now that I have a few lbs can experiment some more.
Do you use a standard match chamber with this load?
What is your O.A.L.?
What pressure / velocity range are you getting?
Thanks for the info, and I am not easily offended. Ha Ha.
Ron.
rnbra-shooter
CGN Ultra frequent flyer
- Location
- New Brunswick
If the "Open" (e.g. high performance 6.5mm) shooter isn't as good as the .308 shooter, sure, agreed.
But if both are good, capable shooters, the .308 shooter is working against the fact that his bullets drift 50% more in the wind than the Open shooter's bullets. Like blackjack and life insurance, things might grind slowly, but the odds will slowly and surely work against you, and eventually win.
(Definitely agree that we will have to solve the problem of redudancy in our various flavours of F-Class). Were I to be elected Dictator Of Shooting Rules, I'd probably do something like decree that the only F-Class is .223 and .308/155. Or perhaps, that the only calibre to use in Target Rifle is 6mmBR. Of course with a platform like this, I am unlikely to be elected anytime soon - whew!, for all of us... ;-)
