BACO bore wiper experiment

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gunlaker
Posts: 2764
Joined: Tue Jun 23, 2009 6:16 pm

BACO bore wiper experiment

Post by gunlaker »

I've used the BACO bore wipers in .45 a fair bit, mostly when shooting paper patched bullets. I'm still on the fence for using them when shooting GG bullets. So far wiping has always been better for me, but slower.

To me the idea is more attractive for silhouettes than BPTR due to the tighter time constraints. I once used them in my Shiloh in .40-65 at a match and got my first 10 turkey pin. It came at the cost of pulling long strings of lead out of the bore after each bank of animals. At that time I used a single felt on the wiper chased by a damp patch. Basically this left the bore dirty and wet :-). That was a few years ago.

Today I decided to give them another go and I thought that some of you might find this interesting.

I first shot 4 sighters, then a 10 shot group at 200m on the German 25 ring target from the prone position. This was with my normal routine of 2 damp patches. The result was a pretty nice target, scoring 245-6c. One shot unfortunately landed in the 23 ring due to the "hold extra carefully to make the last shot perfect" effect :-). Other than the one flyer it was a nice 2" group.

Then I did 15 shots using wipers and a single felt, but chased by a dry patch. Each shot was progressively higher on the target until shot #3 or #4. It was interesting to see the shots climb and then stabilize once the bore condition became consistent. The remaining 11 shots went into 2" high by almost 3-1/4" wide, about 2 minutes higher than the group I shot while wiping. The group wasn't as nice as the wiping group, as the shots were all scattered evenly through it, rather than clustered at the center. The chaser patch always came out with some groove sized black streaks on it so the bore was definitely not as clean as with my regular wiping routine.

Today was a cool high humidity day with light rain. I expect that had I been in the hot & dry western states that the barrel condition would not have stabilized, I would have fouled out with the wipers.

It was interesting to see the barrel condition stabilize and see it's effect on the grouping.

Next time I'll give 2 felts a try. Now back to scrubbing out some lead.

Chris.
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desert deuce
Posts: 3845
Joined: Mon Apr 14, 2008 10:51 pm
Location: Rio Rico, Arizona

Re: BACO bore wiper experiment

Post by desert deuce »

As you know Chris, I shoot grease groove bullets exclusively.
In both 40-65's, chasing the bore wiper with a dry patch causes leading. Whatever I use (mostly M-Pro 7 Cleaner) on the felts doesn't matter.
A 2.25" square patch moist, not wet, with 50/50 Audi Antifreeze & Distilled Water right behind the bore wiper with one felt has not, so far.
I do put a light touch of Italian olive oil on the O-Ring, Gullo insists Virgin Olive Oil is best but I bought the cheapest pint bottle on the shelf.

However, one of the original arsenal patches almost wet with the 50/50 solution will keep the bore consistent for 15 shots, SO FAR. At this point in time we have only had one 100 degree day. Plenty of single digit humidity days though. I am using the SPG Tropical lube. On the rod tip for the arsenal patch I glue a glass bead on the tip of a .35 caliber nylon brush to reduce the risk of punching through the patch. Essentially Chip Mate does the same without the nylon brush but his rod tip is a good fit in the bore.
Sometimes you get the chicken, and sometimes you get the feathers!
gunlaker
Posts: 2764
Joined: Tue Jun 23, 2009 6:16 pm

Re: BACO bore wiper experiment

Post by gunlaker »

Zack I think the main problem I am having is that the o-rings aren't sealing so some crud gets past them, and the chaser patch can't quite clean up what's left behind. My .45 cal squeegies seem to seal way better. I'm hoping that maybe a second felt will help keep most of the crud in front of the o-ring.

I also have some more of the .40 cal squeegies coming. Mine were a very early batch. I'm hoping that the originals were just a little undersized.

Chris.
gunlaker
Posts: 2764
Joined: Tue Jun 23, 2009 6:16 pm

Re: BACO bore wiper experiment

Post by gunlaker »

I did find it very interesting to watch the impacts climb the target until the bore condition became consistent. That was pretty cool, however I'd hate to have to fire 3 foulers to get the thing to start grouping.

Chris.
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