Recent content by cdoubleu

Tall target is still valid. It’s not just checking a correction factor, but there can be a coupled effect on the windage adjustment. It would identify that. If you are talking head position, I’d look into how you adjust your scope’s parallax. If you have it set right, other than recoil...

Threee likely issues to have that big of a difference: 1) The calculation is set up for a G7 and you are inputing the G1 value. 2) The scope is set up in your ballistic calculator as milRAD and you are assuming it’s MOA. 3) Velocity is set up in your ballistic calculator as meters/sec instead of...

Some people are stuck on 338. Great caliber, but the heavy 30’s are out classing it in bullet design efficiency, so it’s becoming a comparison much like 308 vs 6.5Creedmoor. Yes, more initial energy, but fired at the same velocity the heavy 30’s will eventually overcome the difference. I’d...

Hornady factory loads are on the hot side. Out of a 25” barrel I was getting 2540, SD of 15. From your AR50 with the longer barrel I would expect up near the advertised velocity of 2750 would be pretty close. If your looking for for a lot of good information, I’d invest the money in a...

You cannot have a gunsmith run a normal reamer in it as a chamber reamer is a larger size than a sizing reamer. Get a 1/2” or 12mm flex hone, 320 or higher grit. It will work on any standard bolt face size die (.473) for cleaning up surface rust/polishing without dimensionally changing it to...

Scope height right? Zero offset put into your ballistic calculator?

If you’re trying to max out your BC, Higher twist rate means higher BC (1.8-2.0 are about right for fully maximizing BC). The advantage of lowest twist rate possible that short range bench rest shooters use for their game is outweighed by BC which has a more cumulative result out at range.

What bullet are you shooting and what twist rate? You may be marginally stable.

Use powdered rosin when mounting scopes in rings. You can buy a ten-life supply from Miday or Brownells (1lb, 450gm for the metric types here) for $20-25. It’s one of it’s intended uses.

Enter Me In US Optics Rifle Scope Contest

I've had very similar list of things in my field pack, to my disappointment, the blast match has been the most upsetting piece of survival gear I've owned. It works great in your back yard and show room floor, but the plastic becomes extremely brital in the cold. When I needed mine the striker...

Enter Me In The Long Range Rifles, LLC Component Give Away Contest

Jap Hunter, If you are having problems matching your trajectory these will be your biggest obstacles: Accurate muzzle velocity (backwards calculated from chronographed speed, and distance measured from the barrel), An accurate BC (not necessarily listed), and finally, insuring that your...

What state(s) do you hunt big game in most often? TEXAS What is your primary long range hunting cartridge? 7mm Remington Ultra Magnum ------------------------------------- Regarding your primary long range hunting cartridge choice above: Do you use factory ammunition? No If so...

Something that most don't realize is that Federal land like National Forests and BLM land is open to hunting and shooting as long as you are acting responsibly. Surely, If you live in California you have some closer than three hours... and it's free (minus the Federal income taxes you pay...