Recent content by jr_roosa

As I am remembering from some of Bryan Litz’s books, the faster you go through the air the more stability you need, but you get that because the bullet is spinning faster, so it washes out in the end and you can generally equate barrel twist to bullet stability regardless of velocity.

Vihtavuori powder is pretty clean stuff too. -J.

Once I got my 550 I basically load everything on it. Even load development. It’s just too easy. The only thing I don’t do are long range loads where I like to hand throw each charge. -J.

Pretty sure none of my go-to 300blk loads will chamber unless the bolt has enough momentum to push the bullets into the case. I've never tried to get them to chamber by force. -J.

I have one of each. They both have pluses and minuses. If I had unlimited budget I would clone my m4 upper with the CMMG dedicated upper and swap uppers instead because the POI shift is significant with the adapter. Instead I keep the money in my pocket and I just adjust the red dot. -J.

Basically it doesn't have the channel for the gas key. There's just a little cutout for the gas tube if you are using it with a conversion kit so that it will fit a normal upper. Ironically, in my dedicated upper there is no gas tube, so the cutout is a perfectly 22 LR sized cavity above the...

Try running a regular charging handle and see if you have problems. I have the CMMG plastic one in the parts box. I swapped it for a real one on my dedicated upper. -J.

I use my conversion kit with regular charging handle. No issues. POI with the conversion kit is way off, but consistently off so I can just dial it into the red dot. Groups are nowhere near as good as 556, but plenty of fun for 25yd plinking. My daughter has the dedicated CMMG 22LR upper and...

Every 30-06 rifle I bought since my first one has had a slightly shorter jump to the rifling, so my best handloads with the old rifle jam a little in the new rifle. Every time I got one of these new rifles, I head to the range with a box of my "best" ammo and shoot terrible groups. When I...

The two guns up next on my wish list haven't varied by more than $75 on Buds in the last three days. The price has gone down as low as $50 less than Saturday. Not sure what kind of algorithm Buds uses, but now that I've been checking it changes by a few bucks every few hours throughout the day...

Otoscopes (for looking in ears) have fixed magnification optimal for the eardrum, maybe 3/4" from the end. They do have nice axial light. Ophthalmoscopes (for looking in eyes) have widely adjustable magnification and also have good axial light. They cost a bit more. I use my ophthalmoscope...

You should see the bases on hxp after the tenth time through a garand. LC and Winchester do a lot better at the base. Mine don't mess with the shellholder though. That sounds annoying. J.

Also depends on brand of brass. I have some 10x fired HXP, and I get separation on Winchester commercial brass after 4x. This is in 30-06. No idea if 308 garands or brass are different. Just have to do the experiment yourself. If the primer pockets loosen up or you get a ring you can feel on...

I have rifles that go from 4moa to 1moa depending on load with the same bullets. I don't understand why it doesn't work like it does in video games. There is an upside to this. I got a 1903a4 and its shooting 4moa with off the shelf ammo. I know it will shoot better once I find a load it...

Get Amazon prime. I got mine with free shipping to my curb (I was nice to the freight truck driver and he wheeled it to my workshop door. Shipping costs a ton for safes, so the free option is great. They have mostly middle of the road safes on Amazon, but mine works fine for me. J.