Post by: 7mmfan on September 27, 2016, 09:17:56 AM
So now that I've done about all I can do to the gun itself short of glass bedding the action, I'm working on the loads. Yesterday I found the lands. An average of 4 attempts came to 2.87" My magazine limits my OAL to 2.85, so I loaded them a hair shorter, 2.83 to make sure I don't have any issues with cycling rounds. I received some load data from a member a while back and his OAL was 2.75 - 2.76, specifically for Accubond or other ballistic tip bullets. I have read in other sources that some peoples best accuracy with these types of bullets comes with a seating depth of .1 from the lands, which is almost exactly what his loads were set for.
Does anyone else have any experience with seating depth for ballistic tip bullets in particular? I loaded two test batches last night, one batch at 2.83 and one batch at 2.76 to try and see which one performs better.
Post by: Bill W on September 27, 2016, 09:42:22 AM
What weight bullet and what size groups are you getting. What's the issue you are trying to overcome?
Post by: cooltimber on September 27, 2016, 10:02:37 AM
Post by: 7mmfan on September 27, 2016, 10:35:48 AM
Currently I'm getting about a 2-2.5" group at 100 yards. If i'm hunting blacktails, I have no issues with that, but I know the gun is capable of doing better, so I feel that it boils down to the loads and seating depth and finding a combo that works for this gun.
I'm just one of those guys that does better with a wealth of information/ideas that I can check off as I go, so the more input I get, the better overall picture I have in my mind of what I need to do.
Post by: Wetwoodshunter on September 27, 2016, 10:53:15 AM
When you do a progression how do you start? I do 4 rounds each with the books reccomended length and then change my powder load according to the book by 1/5 the difference between max and min loads. (5 evenly spaced loads between max and min) Hopefully one of these will group.
Now from my best grouping load I then change neck spacing using my most accurate powder load walking the bullet in closer to the lands. (Typically according to the book you use you have less than ideal fit because the specs are generic and should be able to be used in most guns, but you are making something specific for your gun)
For me to do a progression it takes a minimum of two range days. Hope this helps, like I said by no means I'm an expert but my gunsmith (Brad Elmer) taught me his reloading process and it works great.
Post by: dog on September 27, 2016, 11:58:05 AM
Post by: 7mmfan on September 27, 2016, 01:37:32 PM
I agree that the lightweight rifle is a challenge for me. My 7 mag is a tack driver but its a Ruger Mark II, heavy and solid. I'm learning how temperamental lighter weight guns can be. It has drastically helped my shooting in other areas though, by forcing me to pay attention to the small details.
I'll work on my loads until I find one that groups better than what I've got and then work back on the seating depth. Thanks guys.
Post by: Bob33 on September 27, 2016, 01:56:30 PM
Post by: 7mmfan on September 27, 2016, 01:59:21 PM
Post by: Black Ghost on September 27, 2016, 07:01:36 PM
Post by: TVHunts on September 27, 2016, 07:14:03 PM
I am with you, 2- 2-1/2" groups are not acceptable and that rifle should do much better than that.
Post by: Jason on September 27, 2016, 07:25:31 PM
My buddy's gun also seems to really like that load with the same coal in his Remmy 700.
Post by: 7mmfan on September 27, 2016, 09:15:35 PM
Have you considered a different bullet or have you already tried different bullets?
I am with you, 2- 2-1/2" groups are not acceptable and that rifle should do much better than that.
I have not tried different bullets yet, just because I'm stubborn and I have lots of the 139 Hornady Interbonds laying around. I may try some Accubonds, or maybe even good old Interlocks or Partitions. I've also considered stepping up the bullet weight, but I'm going to stick with the 139/140 size for the time being and try to make it work.
Post by: copasj on October 16, 2016, 07:03:59 PM
Powder can make a huge difference in accuracy as well. If you haven't tried any other powders yet, do that first. I know my 7x57 shoots 175gr RN well with H-4895, but sprays them all over the backstop with H-4831.
Sent from my Nexus 6 using Tapatalk
Post by: jackmaster on October 16, 2016, 07:21:45 PM
Post by: bullfisher on October 18, 2016, 03:01:12 AM
Post by: thinkingman on October 19, 2016, 08:04:06 AM
I wanted a R700 Mountain rifle, the one with the laminated stock and fluted barrel, but went Tikka instead due to R700 being a crapshoot.
I wouldn't spend a ton of money trying to find a recipe unless it's a hobby you're passionate about.
Post by: Henrydog on October 19, 2016, 08:14:57 AM
2nd I have a Ruger that I could never get dialed in. I tried factory and handloads at several weights and it never gave satisfactory results. The cause was a broken crosshair on the scope
Post by: coachcw on October 20, 2016, 05:33:16 AM
Post by: luteai on October 20, 2016, 09:16:17 PM
Post by: jrebel on October 20, 2016, 09:19:43 PM
Post by: mrolen on October 21, 2016, 09:44:31 AM
started working with re-17 and 162 eld-x and it looked to be promising but i traded the rifle off before i could get a solid load worked up.
Post by: thinkingman on October 21, 2016, 11:23:42 AM
Anyone ever try working a load with h414 pushing a 140 grain partition or accubond? Trying it now and will report back after I make it to the range. Really hoping I can make it work as I have a ton of h414 that I need to burn.I shot 414 pushing 140 Barnes TSX and 150gr Partitions.
Accuracy was very good(under 1MOA) with all loads but never approached the published velocities out of my Tikka.