260Rem ???
- Thread starter Jamie
- Start date
Waste of time. You're giving up way too much velocity at those barrel lengths. If you look at the powders used most often for 140gr. class bullets in .260 Rem., such as H4350 & H4831, none of those powders are going to burn efficiently in a 20-22 inch barrel.
You'd basically end up with an under-achieving flame thrower...
You'd basically end up with an under-achieving flame thrower...
ME thinks that you are trying to solve the hunting/precision riddle. If this is the case, I have thought about going exactly the route you describe more then once, but always end up with a 308/175/180 combo.
I have been looking into doing the same thing (20") after looking at a few loading manuals I think a 129/130gr bullet at 2700 fps is going to be easy to achieve. After running the numbers for a 130gr Accubond (BC .488) through JBM software I get 2011fps and 1167 ft/lbs at 400 yards which is more than enough for any deer (if that's your sport). As for punching paper or banging steel -34.7 MOA and 1233 fps at 1000 yds which competes pretty well with my 26" 308 shooting 155 A-Max's at a muzzle velocity of 2984 fps for a -32.9 MOA and 1205 fps at 1000, In a much more compact rifle.
I already have the action and barrel just waiting on the stock before I ship it to the smiths.
I've got a .308 LTR and a 6.5 barrel blank in my safe that I've been thinking of mating (I'm a 6.5 slut). Be sure to keep us up to date with you project. I was also thinking that 22" would be a nice compromise between the LTR 20" and the P 26"
Interesting antedote for one to give some consideration to. One of the most common complaints amongst the 7mm/08 fanboys is that the cartridge doesn't get enough respect compared to its bigger brother .308 Win. due to preceived ballistics inferiority over the parent cartridge.
The main reason being that most commercially available 7mm/08's and have barrel lengths that seldom excede 22" due to the fact that most companies chamber the round in compact, relatively light weight, and portable hunting rifles. Naturally, the resulting velocities are something few get excited over. Most reloading companies base their publish reloading information based on those commonly available barrel lengths which only reinforces the notion that the 7mm/08 is inferior to .308 Winchester.
Ask anyone who has built a custom 7/mm08 with a 24"-26" barrel and ask them if they were disappointed with the increase in velocity obtained. The .260 Rem. is no different in this regard. It simply performs better at longer barrel lengths.
I think you're going backwards here and not forwards. I fully agree with the comment to stick with the .308 Win. if you're considering that barrel length.
However, if s**ts & giggles factor and the cache of having something unique are your primary considerations - have at 'er!
The main reason being that most commercially available 7mm/08's and have barrel lengths that seldom excede 22" due to the fact that most companies chamber the round in compact, relatively light weight, and portable hunting rifles. Naturally, the resulting velocities are something few get excited over. Most reloading companies base their publish reloading information based on those commonly available barrel lengths which only reinforces the notion that the 7mm/08 is inferior to .308 Winchester.
Ask anyone who has built a custom 7/mm08 with a 24"-26" barrel and ask them if they were disappointed with the increase in velocity obtained. The .260 Rem. is no different in this regard. It simply performs better at longer barrel lengths.
I think you're going backwards here and not forwards. I fully agree with the comment to stick with the .308 Win. if you're considering that barrel length.
However, if s**ts & giggles factor and the cache of having something unique are your primary considerations - have at 'er!
Mystic Precision
CGN Ultra frequent flyer
- Location
- Summerland, BC
This would be a great time to use Re17. Light'em up and you will have some very nice velocity.
Jerry
Jerry
.260ai
I have an ATRS .260AI on a stiller action, with a 22" bbl..... will keep you fellas updated on my velocities as i develop the loads, i can't remember off the top of my head but i do believe with the h4831sc max book loads for fireforming, I was getting close to 2800 fps, with 139gr scenars. Have some rl17 to play with and going to try some ramshot powder yet.
I have an ATRS .260AI on a stiller action, with a 22" bbl..... will keep you fellas updated on my velocities as i develop the loads, i can't remember off the top of my head but i do believe with the h4831sc max book loads for fireforming, I was getting close to 2800 fps, with 139gr scenars. Have some rl17 to play with and going to try some ramshot powder yet.
Brad, give H4350 or something similar a try. I found with a 24" barrel I couldn't get the velocity I wanted out of H4831. 2950fps was easy with the 140's out of my 260AI and H4350. I think H4831 is just to slow a burner to be used in shorter barrels.
Terry Perkins
CGN frequent flyer
- Location
- Bruce County
Jamie, stick with the LTR. Use a good rangefinder, and make use of the target turrets on your scope. This is assuming you use target turrets. Also, use a Butler Creek rear cap, and have your come-ups for that particular load glued on the inside of the rear cap.
For coyotes beyond the point blank range, range the coyote a la RF, read the come-up from the cap, set the vertical, set the windage for wind, and shoot. With practice, and confidence this can be done in seconds.
