I started the next part of eliminating possible causes of the horrible shot placement with removing the muzzle break. This was a little bit of an adventure. The shop down the street from my home was unable to remove the break due to having broken the tool they normally would use for a break like the one I currently am using.
This left me to take care of it myself, and when I am left to my own devices things can become expensive.
With this in mind I grab a pair of channel locks, (it is strange that a single tool can be referred to as a pair), and twisted on the break until it broke loose. With this work done I remounted the SWFA 10x, and proceed to make some new loads using a different bullet.
I decided to try the 168 grain Hornady hollow point boat tail match, this is a round that I have had a lot of successes with, and the fact that it is the only other .308 bullet that I currently have in inventory also played a major role in this decision.
With the break removed the 175 grain Nosler load still did not perform. The first two rounds were used to adjust the scope, with the third round landing two inches below the bullseye I left the adjustment alone for the next two shots in an effort to create a decent group.
That turned out to be a failure.
Load number 42, and 43 both were made with IMR 4350, wear as load number 44 used Reloader 22. All three have shown great potential, and will be continued to be tested.
First was load 44, that produced a sub 1 inch group with a flier about two inches above the est of the group. I will take the blame for this as I was already becoming a little twitchy because of the recoil.
Load 42, after a scope adjustment, had two shots touching, with shot three, and four producing a one hole group, then a low left flyer.
For the final five shots, four rounds produced two separate two round groups, that were slightly larger than an inch, with the fifth round also producing a low left flyer.
By the end of this round of testing I was done for the day, and went to the handgun range, to enjoy a revolver I don’t spend enough time shooting.
The 175 grain Nosler Custom Competition seem not to work well for me, lucky I only have about 3,200 left.
A muzzle break will be needed no matter what. I will most likely go with a model that ports the gasses to the sides allowing the rifle to move in a more level straight line.
I need to work with my Model 27 a little bit more.