![]() can't we improve on an archaic heeled bullet, mass produced round.Ī cast or swaged HP lead 69gn bullet should be perfect. Why, when we have the ability to select one of any number of bullets, weight, profile, material, any powder type and charge, any barrel twist we fancy and take all the time we want to tinker around with seating depth etc. 22lr, you're given a 40 grain bullet and almost universally, a 1/16 twist - it works OK'ish and has done for over a hundred years. Over that same 50 years, centrefire accuracy has improved in leaps and bounds - 20 years ago a sub 1 moa rifle was something talked about in hushed tones, now it's pretty run of the mill. 50 years later, nothing much has changed - the targets at 100 yards are still the same, rifles are better but 100's are still fairly rare. In the 1960's I was shooting NSRA prone competitions with a BSA International and Tenex ammunition, on the 100 yard targets, scores in the mid to high 90's were quite usual but 100's were quite rare. 22lr has been around for 150 years, the Captain of the Cutty Sark and Abraham Lincoln would both have been quite familiar with it, it's scarcely changed at all. A silent lead HP 69grain bullet at 1050 and 170ftlbs with sub 1moa accuracy at 100 yards sounds good to me, especially if you already have the rifle. Why can't we develop a load that performs better than the humble. 22lr sub is excellent at the job it's designed for, small game at 40-80 yards, and yes, I know it can be taken further but accuracy is, at best, fairly mediocre once you get round the 100yard mark. 22lr subsonic at 1050 gives 97ftlbs - a 69grain bullet at 1050 is not far off double at about 170ftlbs. Being able to just change mags to a full power. 22 and seen a fox just out of humane range. 22lr with subsonic ammunition is that it's so very quiet, and as such is idea for rabbit sized pests at moderate ranges in noise sensitive areas, however, on a good few occasions I've been out with the. It works as advertised within a narrow window.I can certainly see the sense in this, I'm just surprised it's not done more often and amazed that the accuracy problem doesn't seem to have been really cracked yet. It is designed to be subsonic in a mil spec 14½" barrel- it is. Out of 16" barrels like our test HK 416's.it is often just supersonic (1180fps) but a few civi spec 16 barrels it stays just below the speed of sound. Has cycled reliably in all the rifles I have tried it in- 1960's vintage M16, Current M4, HK 416 and ruger Mini 14.īullet (on the new stuff) weighs 100grns (old was 127grn) which is marginal on stability. 300 Whisper/Black out craze got me interested in centerfire subsonic loads. Accuracy is adequate for it's intended mission out to 100m or so.īullet is filled with Tungsten carbide- so not cheep. 300 BLK went to the range with me one afternoon and left with another. in this thread in this sub-forum in the entire site. Several Hodgdon, IMR, and Winchester powders are appropriate for full-power 223 Rem. 223 Rem with 55 gr NBT and 4 gr TB for 1065 fps.30/30 Win with 160 H-FTX and 7.5. handloads, and faster-burning powders like HP38 and Trail Boss can be used for low-velocity specialty loads. Hodgdon offers more than a dozen different propellants for reloading 223/5.56 ammo. Burn rates range from IMR 4198 (fastest) to CFE 223 (slowest). Powder (25grns) looks like Vihavouri.ĮS also produce a round that will not cycle the action- different folks like different things. This uses the same 100grn bullet but uses 8grns of powder and a small foam filler. ![]() Ive got a can that should be outta NFA jail sometime soon ( hopefully ) so Im doing my homework on subsonic loads. It is intended ONLY for barrels up to 14½".it occasionally sticks in the barrel of a 16" carbine. I understand 9mm subsonic loads but havent delved into any rifle loads yet.
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