best time to start a bay dog in woods???

I'm pretty sure I ruined a 4.5-5 month old pup today because I let him come to the woods. He's not chained up yet and I went to run he ranch behind the house. He followed so I took the collar off the bulldog and put it on him. Dry run, headed back to house cause garmin died and lead dog goes what I think was 3-400 and strikes off a wallow. Bayed solid. Pup goes in there and they're hammering. Send bulldog from what I was "sure" was no more than 150, he hit, bird bull pup went in to catch with him and all I heard was yelping after that. Bulldog missed and I think the pup got trampled. Pretty sure it was a good sized sow and also pretty sure I ruined a pup I was really excited about because of my stupidity. Could have got closer for bulldog, could have let them bay longer to tire hog out. Coulda shoulda woulda. Bottom line I think I ruined a dog today because I let him come to woods at too young of an age. Last weekend he came to woods. Got on a 80 lb sow and it was perfect, great!!! But can't always control how big of what you get on and today I think was too much hog.

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