ORIGINAL: skeeter 7MM
Chap, an aftermarket, suppose to be harder(last longer) then factory spec vents. PR stands for Precision Rifle (aka
www.prbullet.com) company that markets this vent. Cost is $14 for 6 and being PR is only 1/2 a province away in Manitoba(Canada) it is a logistical choice as much as a cost per thing for me.
BTW your choice in powder my not be the most speediest but who'd argue with your results. I have got a little caught up in the chrony I admit more b/c of curiosity and wowing potential but I'd take 200 fps less and an iddy bitty group anyday over a erratic barn burner. 5744 is a bit iffy here in regards to availability and thus I have spent very little time with it, though I did notice its potential, light kiss back and fouling!!! 4759 is as common as bottled water and gets the savage to where it is intended in terms of performance, other eclipse this powder yet with less pressure and safely. Basically boils down to how much you want to invest, shoot and tinker, though I don't think any critter will ever know the velocity difference if its lungs have been deflated
!
Enjoy
I have bought Dead Centers from the owner of the company a few years back. Nice guy. They shot great for me, but were too costly and not so available. Cabelas didn't even carry them, but they are widely available now. I will have to get some of their vent liners, cause 6 for $14 is better than Savage.
As for the 5744, the only reason I started with that powder is Randy Wakeman's web site said it is "more forgiving" and some stay with it all the time.I didn't rally know what it ment, but figured it was a good starting powder. He also said "some stay with it". I may stay with it also given my holes with the TC ShockWaves, if I stay with that bullet. I am not convinced that the TC SWis the best bullet for elk, because of separation of jacket from bullet issues that I have read about, and the shooting test done into wet newspaper over on Doug's Message Board. However if I can only get 3" out of a Barnes, then I will go to the TC ShockWaves. However if the Barnes shoot 1.5" at 100 yards then I will go with the Barnes since I know they hold together on bigger game.That is my logic on bullet selection for Elk in Rifle Season using a ML in Colorado. If there are other 200 yard bullet out there I would like to know about them, and what I mean by 200 yard bullets is from Muzzle to 200 yards no more than 6" drop in bullet over that range.
Chap Gleason
Chap