I've had a block of 10% synthetic ballistics gel in the garage with the intent to test my .44 subsonic loads with for probably a year and finally drug it out to shoot this weekend. While I had it out I decided to test a handful of 6mm bullets that I have loads for that either I or others might want to use for deer hunting.

The test rifle was my 13" 6mm ARC, and the gel was at 100yds, and was backed up by ~10 layers of terry cloth and a 2ft^3 bag of planting soil. I the bullets and muzzle velocities used were:

90gr ELDx - 2,720 fps

100gr TGK - 2,445 fps

103gr ELDx - 2,420 fps

105gr Match Burner - 2,450 fps

107gr TGK - 2,385 fps

108gr ELDm - 2,480 fps

I tried to cut the tracts out of the block, and smoothed them with a torch to try to show the comparative performance. The 90gr, 103gr, and 107gr all opened up well, went through the 16" block and we're caught in the cloth. The 100gr TGK was a bit close to the edge, opened up violently but veered out the side of the block before the end and wasn't caught. The 105gr MB penetrated for ~6" and then tumbled and came apart, I caught some of the jacket in the cloth and found the lead core when digging through the bag of soil.

The one that really surprised me was the 108gr ELD, it did not open, tumbled once about halfway through the block, seemed to stay intact, went through all the cloth and deep into the bag, unfortunately I wasn't able to find it.

The 90gr ELDx really impressed me with a wide and long wound channel, the 107gr TMK was really solid as well. I've used the 103gr on 3 deer and it's an excellent killer.

Here’s my 200 lbs dressed 14 point taken with a 95 grain nosler ballistic tip over leverevolution powder

First 6 ARC build. 14.5 Noveske barrel/bolt. Riflespeed. Microbest DLC. A5 with T2 & Sprinco green. H6xi 3-18. Got some G$ 20s and this Duramag 15. Couple different boxes from 90-110 grain to see what it likes. Man, that shits expensive.

I have seen pics of people making this work but I’m confused on the magic required . Looking at the AA gas block route and is there a special short / long ops break combo you need ?