What Our Customers Are Saying

“Use of the Markron Primer Sealer may make the difference between  a successful hunt and a blown opportunity.”

“This product is a fine addition to anyone’s reloading bench.  It did not affect accuracy as I thought it might.”

“Soaked sealed ammo for over 30 days.  Went to the range…all rounds fired perfectly.”

“Soaked cartridges in water for 3 days.  Fired all rounds in my revolver with no misfires or problems.”

“Soaked cartridges in water for 3 days.  Fired all rounds in my revolver with no misfires or problems.”

“Markron Primer Sealer is a very simple product to use.  It is neat to apply and does not add much time to reloading. I soaked sealed rounds in water for a week.  All rounds fired flawlessly.”

“This product is simply amazing.  I have never shot a dozen shells without at least one misfiring from a wet primer or wet powder.  I fired over a hundred in a down pour on a hunt.  Not one misfired!"

“I decided to take the cynical approach in testing the Markron sealer.  I assembled a box of 30-06 cartridges per the instructions.  I submersed the rounds  in water and left them there for 15 days.  At the range, all rounds functioned flawlessly.  Sealer has no affect on accuracy.  I highly recommend this product.”

“I loaded 20 rounds of 30-06 and submersed in a gallon of water for three months! Took them  to the range and they all fired beautifully, no problem.  I highly recommend this product."

“Wet weather is  “no problem” for this product.”

“Cartridges of handloaded .308 Winchester, .44 mag and .45ACP were submerged for 30 days after being sealed.  These included no crimp, roll crimp and taper crimps.  After 30 days all were test fired without any ignition problems.  The Markron Sealer lives up to its claims and I highly recommend it.”

“I would recommend applying the sealer to cartridges you plan to store for long periods of time.” 

“The Company said it would waterproof cartridges including 30 days water submersion, so I gave it the test.  I sealed 12 rounds of 30-06 ammo and submerged in a bucket of  water for about 30 days.  I removed the rounds and placed them in my deep freeze for a week.  After removing, I heated the rounds up to approx 200 degrees in my kiln, then removed them and back into the water for another week.  I then went to the range and all 12 rounds fired flawlessly.  I can’t conceive of a more brutal test. This product lives up to its reputation.” 

“I have used the Markron Sealer since about 1997 for all of my big game reloads.  I do extensive hunting under extreme conditions including trophy hunts in Africa.  I will not hunt dangerous big game species without the Markron Sealer.  Many Thanks."

“ I reloaded two boxes of cartridges using the sealer and put the reloads in water for 14 days.  All rounds fired flawlessly and the sealer isn’t as messy as the nail polish I have used in the past."

“I don’t often send letters to manufacturers about their products but in this case, I am very pleased to make an exception.  If you’ve ever had a grizzly bearing down on you from out of nowhere with bad intentions and heard that sickening click coming from the chamber it’s a sound you will never forget.  I have, and that’s why I’ve used the Markron sealer for the past 10 years.  I use it for all of my big game reloads as well as my shot shell primers.  Since I began using your product  I have never experienced a misfire from any of my reloads.  You guys hit it right on the head in your advertising, “Certain piece of mind in critical firing situations.” Thanks for an outstanding product……keep up the good work.”