Recent content by o2bmark

I found the issue with the sinclair comparator with my rifle (Christensen Arms CF barrel 308win) and my dies (Redding FL, Redding calibrated shell holder set) and have not tested other combinations of caliber and rifle. The issue is interference from UNSIZED neck of fired case as they come from...

The only thing I really care about is how much clearance I have on chambered rounds. The headspace measurement is to determine how much front to back clearance or movement the loaded round has. .002” is what I try to get in order to allow reliable chambering with minimal Play (hunting rifle)...

I checked setback with hornaday, Sinclair, and by cartridge base to bullet base of bullet sitting on lands and only Sinclair measured .006-7 while other two .002 I’ve been loading for more than 50 years and understand headspace. The perfection of the chamber or my Redding dies has not been...

While working up a load for my Christensen Arms rifle I found the disparity between datum line measurements and Sinclair tapered insert measurements for setback amount. The problem shows up on FL sized cases where not only is the shoulder set back but also the diameter of the body where it meets...

This is your answer and while others on this thread have favorites I doubt anyone will say Frog is “wrong”. I polished up my ebay M5 with Arkansas stones and lubed with a soft pencil. I leveled the beam on 0 ( with a level) by adjusting the weight in the carrier you set the pan on. My...

Islam is exactly what it has consistently claimed for centuries. Take them at their word.

With polio it seems, that infants could catch the disease with very mild or no affects. As a result they pretty much had a lifelong immunity to the disease. The disease was transmitted primarily by feces. After the turn of the century we cleaned up the sewage with flush toilets etc. so that...

Start with what you can‘t or don’t want to change. If you don’t intend alter the throat of the rifle (ream or rechamber) then find out 1st where the bullet you’re using contacts the lands. Now if that point is so far out that the bullet would be barely be inside the case then then all of the...

I use Mitutoyo digital mainly with an analog dial caliper for backup. The digital is especially good since you can zero it on headspace or bullet ogive gauges. Don’t drop it though...

If you like to target shoot be aware the gun will heat up real fast, maybe 3 shots then a good cool down. hunting not a problem. For shooting steel most guys around here went back to brakes except when they want to look cool...

I use QuickLoad software and for that a chrono is essential even for pistol loads. The chrono lets me tune the burn rate in QL so I can accurately determine chamber pressure. I also look for velocity nodes since I seldom have extreme range ladders for load development. The extreme and crude...

Partition is like 2 bullets in 1. If the expanding nose blows up or strikes bone the base continues on like a solid. These bullets have a very very well documented history. Not a match bullet but my completely stock 700bdl holds easily inside 1 moa to 400yds (my longest test). Let’s just say...

I use marmot down bags. The newer down bags are hydrophobic nearly eliminating their only weakness. If it’s warm don’t fluff bag after unrolling. Down is more comfortable over wider temperature ranges. If cold natured always wear a warm cap when you sleep (well always really). If your head gets...

I'm thinking with the introduction of Labradar at a competitive price that a system for BC based on radar would be better, after all it's what the big boys use and tracks the bullet all the way to target so you get far more than average BC over entire track. Bullets do change BC with change in...

Oh boy would I love to give you a shot at my commercial Mannlicher Shonauer 30-06 rifle (not carbine). Impulse buy and in pristine condition with factory swingoff mounts (dovetail rail type) and 6x scope. The thing shoots about 5" group @ 100. Tried iron sights with about the same results...