34 " Dasher Barrel

[savagedasher]

Has anybody tried one Quick load gives 3168 FPS with H 4350 and 105 Hybrids Larry

 

[Alex Wheeler]

Larry,
I get 3050 in my 28'' with rl15. For an extra 100 fps, I wouldn't want to ruin the balance of the gun. I had a Broughton 28'' that would shoot 3150 fps with 34 gr of rl15. I shot better groups with my Krieger at 3030. My best barrel shoots 2980 fps.

 

[savagedasher]

If I run it to max 3200 'FPS The load I gave was 3000 Psi under Max. I wonder if any body had tried one . My 3100 FPS shoot great. H V should keep the balance the same. Larry

 

[queen_stick]

I have no experience with the barrel length in question, but to add to zfats's thoughts, most 100+ gr bullets have known/proven nodes. 2950ish is very common, but if the longer barrel can reach the next node while remaining stable, then you'll have a true advantage. It's hard to say if it will work without trying it...

 

[scott_at_vortex]

I agree with Donovan 100%. Every 6 I have messed with always seem to fall in the 3025-3075 (w/105's)when I really get the load tuned. 6x47,6 creedmore, 6slr,6brk,243 and 243ai. Sure all of those cases are capable of over 3200, but they all shot best in the 3025-3075 (3070 was really common)area. All of these cartridges are/were shot with H-4350,4831,or H-1000. I will also say that it didnt seem to matter if the barrels were 26 or 30", they still fell in this range when they shot best.

 

[johara1]

These guys are right on the money fast isn't always good, Small is better. The Hybrids can go faster but to get something you have to give up something. With the Spencers and the BIB 104's like it around 3000 and you gain nothing going faster. They will shoot through the wind better stable and they shoot smaller. I dropped back to 28" and i have no trouble getting speed i need, and can run them at 3100 if i wanted to without pressure or hard bolt lift. I shot all last year and never changed the load from April to October with the temperature sensitive RL-15 so i would say that is a bunch of crap also. …….. jim

 

[tuttlefarm]

I shot a 32" dasher in heavy gun, with the 103 spencers, it liked 3030 fps. All the barrel did was add weight. Also with a long throat, I could run 3200 fps with R17 (compressed), with no accuracy.
John

 

[savagedasher]

What I was trying to say or ask was. The load I shoot very good is at 3075 with a 29 1/4 barrel.
The same load in a 34''will go 3170. That is 100' faster then 29'' . To me I feel the 100' is a advantage at 1000 YD. The barrel length change with no load is close to the same as from going from a straight 6 BR to a Dasher. Larry

 

[vervi1jw]

Would a barrel block set up be more effective for balance/harmonics with a 34 inch barrel I wonder?

 

[johara1]

Larry, Spencers shoot better slower, call Clay and ask him. I didn't believe it either,and with a shorter barrel it's a lot stiffer,and balances better…..jim

 

[savagedasher]

Larry, Spencers shoot better slower, call Clay and ask him. I didn't believe it either,and with a shorter barrel it's a lot stiffer,and balances better…..jim

I never have tried them but I have found the Hybrids like more speed also. I don't want to change my load to where I have higher pressures I want more speed to see if they still shoot. I feel 100' can be a game changer at 1000 YD. I have over 20 loadings on the same brass without no loose primer pockets. Larry

 

[dkhunt14]

Speed isn't where its at for 1000. A good example is 20 years ago the Cartridges at Williamsport where 30-378; 6.5-300 and 7mm300. They thought that the faster they got them there the less wind drift. This isn't true. Those cartridges all left there and now they 300 wsm and dashers. Most wsm guys are shooting 2850 or so. Way slower then the 3200 plus of years ago. They also shoot way smaller groups and higher scores now with slower bullets. I have tested a 308 Baer shooting against my wsm and the wsm kicks butt with the slower bullet. It's all about tune and settling the bullets down. Matt

 

[savagedasher]

Speed isn't where its at for 1000. A good example is 20 years ago the Cartridges at Williamsport where 30-378; 6.5-300 and 7mm300. They thought that the faster they got them there the less wind drift. This isn't true. Those cartridges all left there and now they 300 wsm and dashers. Most wsm guys are shooting 2850 or so. Way slower then the 3200 plus of years ago. They also shoot way smaller groups and higher scores now with slower bullets. I have tested a 308 Baer shooting against my wsm and the wsm kicks butt with the slower bullet. It's all about tune and settling the bullets down. Matt

I totally agree accuracy will beat BC most of the time. and it will beat speed also. I have found H 4350 to shoot as good as Varget Rl15 4895 Norma 203B. If you input the same pressures an bullet speed H4350 does the same speed at 2000 Less pressure. Or 28' faster at the same pressure My real question if I use my same load and add 4 more inches and gain 100 ' it shoud shoot as good, Larry

 

[savagedasher]

That is 4 10 for every one mile of wind. That could be huge at any match. Could be the best $80.00 I could ever spend. Thanks for the wind drift information. Larry

 

[dkhunt14]

Larry go to the Lilja site and look up the article where he cut off the barrel an inch at a time. Not all of them gained any and some were different. My Buddy kept rechambering his Dasher and got all the way down to 19 inches and the velocity didn't drop off very much. That was from a 30" barrel that was rechambered 3 times. Matt

 

[savagedasher]

Larry go to the Lilja site and look up the article where he cut off the barrel an inch at a time. Not all of them gained any and some were different. My Buddy kept rechambering his Dasher and got all the way down to 19 inches and the velocity didn't drop off very much. That was from a 30" barrel that was rechambered 3 times. Matt

His testing mirrors what I wrote 20 to 25 per in is the norm. Depending on the powder.

 

[johara1]

I had found that between 30"and 28' i only lost 18 fps. I don't see the need for a long barrel and getting it so nose heavy you get vertical. It seems funny that since i slowed down the Spencers I sure shot a lot of 100's and 50's and they were small. But when i shot the Bergers fast i was all over the place….. jim

 

[savagedasher]

I had found that between 30"and 28' i only lost 18 fps. I don't see the need for a long barrel and getting it so nose heavy you get vertical. It seems funny that since i slowed down the Spencers I sure shot a lot of 100's and 50's and they were small. But when i shot the Bergers fast i was all over the place….. jim

I have never shot Spencers . I have made Hybrids and H4350 shoot very well at 3100 Fps .My next test is going to pick the speed to 3200 FPS with 63000 PSI. Dmoran who I trust told me 100' per second in a 10 mile wind change is 4 '' at 1000 YDS. To me that is 12'' or better over 2850 FPS. Now the problem is do I get a 7.5 T or a 8''. Larry

 

[savagedasher]

Larry,

When I started 1k benchrest, I asked.... all the guys here really rung the dasher out, and I trusted them. A lot of the 30's wouldn't shoot, zip an inch and instant shooter. I had a 29 chambered in 2011, exactly where my hummer of 09-10 was. I struggled getting the flyers to go away. Shot the first match with it, bigger than hell with a wad and flyers. I sent that thing to town with Jack Peterson Saturday night. He brought it out Sunday morning at 26.5. I had relay 1, looked down the bore, got the scope looking where I thought was right. Took six minutes of sighters and shot a 100 with it. I took it out between matches, the velocity dropped from 3030 to 3015, only difference was it shot.

Tom

Tom I'm shooting 3105 with out any flyers now I have to try getting 3200 with the low pressure load I'm using now and a 34'' should get me there. We are starting to shoot some paper.
If I do the same as all the rest the only thing I can expect is the same as they get.
Thanks Larry

 

[savagedasher]

I ask because I was hoping some one had had success. Larry